#737DEB
Closest named color: Cornflower (#6A79F7). oklch(63.4% 0.163 276.8), rgb(115, 125, 235).
Aa
Black text reads best on this color (5.86:1).
About this color
#737DEB is a medium-light, vivid blue. In OKLCH its lightness is 63%, its chroma 0.163 and its hue 277°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower (#6A79F7), ΔE 0.025 away. Black text reads best on it, at 5.86:1.
| Hue family | Blues |
| Lightness | medium-light (63%) |
| Chroma | vivid (0.163) |
| Temperature | cool |
| Nearest name | Cornflower (#6A79F7) |
| Black text | 5.86:1 |
| White text | 3.58:1 |
Values
| HEX | #737DEB |
| RGB | rgb(115, 125, 235) |
| HSL | hsl(235, 75%, 69%) |
| OKLCH | oklch(63.4% 0.163 276.8) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #737DEB | 3.58:1 | AA large text | Lc -68.7 | Content text, not long reading |
| Black text on #737DEB | 5.86:1 | AA | Lc 40.9 | Non-text elements, placeholder text |
| #737DEB text on white | 3.58:1 | AA large text | Lc 63.2 | Content text, not long reading |
| #737DEB text on black | 5.86:1 | AA | Lc -38.5 | Non-text elements, placeholder text |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 500.
-
Step 50
50
#F3F5FD
oklch(97.1% 0.011 274.9)
-
Step 100
100
#E5E9FA
oklch(93.6% 0.023 275.4)
-
Step 200
200
#D1D7F7
oklch(88.5% 0.044 277.1)
-
Step 300
300
#B3BDF4
oklch(81% 0.079 276.5)
-
Step 400
400
#8C98EF
oklch(70.6% 0.128 276.6)
-
Step 500
500 (this color)
#737DEB
oklch(63.4% 0.163 276.8)
-
Step 600
600
#5C62D8
oklch(55.5% 0.178 276.7)
-
Step 700
700
#4C51BB
oklch(49.1% 0.164 276.5)
-
Step 800
800
#3E4398
oklch(42.8% 0.137 276.4)
-
Step 900
900
#343979
oklch(37.6% 0.107 276.6)
-
Step 950
950
#1F2247
oklch(27.1% 0.068 277.3)
#737DEB with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #4C8CEF | 0.052 |
| Deuteranopia (no green cones) | #3F83E9 | 0.055 |
| Tritanopia (no blue cones) | #4095A9 | 0.143 |
| Achromatopsia (no color) | #878787 | 0.164 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #737DEB
#737DEB
oklch(63.4% 0.163 276.8)
- #A18900
#A18900
oklch(63.3% 0.13 96.7)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #737DEB, closest first.
No curated palette has a color within ΔE 0.04 of #737DEB.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower #6A79F7 ΔE 0.025
- Soft Blue #6488EA ΔE 0.031
- Lavender Blue #8B88F8 ΔE 0.048
- Periwinkle #8E82FE ΔE 0.050
- Medium Slate Blue #7B68EE ΔE 0.051
- Medium Purple #9370DB ΔE 0.056
- Perrywinkle #8F8CE7 ΔE 0.059
- Cornflower Blue #6495ED ΔE 0.061
Use #737DEB in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.