#737CD8
Closest named color: Soft Blue (#6488EA). oklch(62.1% 0.138 277.4), rgb(115, 124, 216).
Aa
Black text reads best on this color (5.60:1).
About this color
#737CD8 is a medium-light, moderately saturated blue. In OKLCH its lightness is 62%, its chroma 0.138 and its hue 277°. Its hue sits on the cool side of the wheel. The nearest named color is Soft Blue (#6488EA), ΔE 0.039 away. Black text reads best on it, at 5.60:1.
| Hue family | Blues |
| Lightness | medium-light (62%) |
| Chroma | moderately saturated (0.138) |
| Temperature | cool |
| Nearest name | Soft Blue (#6488EA) |
| Black text | 5.60:1 |
| White text | 3.74:1 |
Values
| HEX | #737CD8 |
| RGB | rgb(115, 124, 216) |
| HSL | hsl(235, 56%, 65%) |
| OKLCH | oklch(62.1% 0.138 277.4) |
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 #737CD8 | 3.74:1 | AA large text | Lc -70.4 | Content text, not long reading |
| Black text on #737CD8 | 5.60:1 | AA | Lc 39.2 | Non-text elements, placeholder text |
| #737CD8 text on white | 3.74:1 | AA large text | Lc 64.9 | Content text, not long reading |
| #737CD8 text on black | 5.60:1 | AA | Lc -36.8 | 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
#F4F5FC
oklch(97.1% 0.009 279.7)
-
Step 100
100
#E6E9F7
oklch(93.6% 0.019 276.3)
-
Step 200
200
#D2D7F2
oklch(88.4% 0.037 277.3)
-
Step 300
300
#B5BDED
oklch(80.9% 0.068 277.4)
-
Step 400
400
#909AE3
oklch(70.7% 0.107 277.3)
-
Step 500
500 (this color)
#737CD8
oklch(62.1% 0.138 277.4)
-
Step 600
600
#6067C9
oklch(55.7% 0.149 277.3)
-
Step 700
700
#4F55AE
oklch(49.1% 0.14 277.1)
-
Step 800
800
#41468D
oklch(42.8% 0.116 277.3)
-
Step 900
900
#373B70
oklch(37.7% 0.09 277.9)
-
Step 950
950
#202342
oklch(27% 0.057 277.6)
#737CD8 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) | #5888DB | 0.041 |
| Deuteranopia (no green cones) | #5080D6 | 0.042 |
| Tritanopia (no blue cones) | #4E8F9F | 0.122 |
| Achromatopsia (no color) | #848484 | 0.138 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #737CD8
#737CD8
oklch(62.1% 0.138 277.4)
- #9C8600
#9C8600
oklch(62.1% 0.128 97.5)
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 #737CD8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Soft Blue #6488EA ΔE 0.039
- Cornflower #6A79F7 ΔE 0.050
- Medium Purple #9370DB ΔE 0.054
- Perrywinkle #8F8CE7 ΔE 0.062
- Dark Sky Blue #448EE4 ΔE 0.062
- Medium Slate Blue #7B68EE ΔE 0.063
- Lavender Blue #8B88F8 ΔE 0.065
- Cornflower Blue #6495ED ΔE 0.067
Use #737CD8 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.