#737EF7
Closest named color: Cornflower (#6A79F7). oklch(64.4% 0.178 276.3), rgb(115, 126, 247).
Aa
Black text reads best on this color (6.05:1).
About this color
#737EF7 is a medium-light, vivid blue. In OKLCH its lightness is 64%, its chroma 0.178 and its hue 276°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower (#6A79F7), ΔE 0.018 away. Black text reads best on it, at 6.05:1.
| Hue family | Blues |
| Lightness | medium-light (64%) |
| Chroma | vivid (0.178) |
| Temperature | cool |
| Nearest name | Cornflower (#6A79F7) |
| Black text | 6.05:1 |
| White text | 3.46:1 |
Values
| HEX | #737EF7 |
| RGB | rgb(115, 126, 247) |
| HSL | hsl(235, 89%, 71%) |
| OKLCH | oklch(64.4% 0.178 276.3) |
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 #737EF7 | 3.46:1 | AA large text | Lc -67.4 | Content text, not long reading |
| Black text on #737EF7 | 6.05:1 | AA | Lc 42.1 | Non-text elements, placeholder text |
| #737EF7 text on white | 3.46:1 | AA large text | Lc 62.0 | Content text, not long reading |
| #737EF7 text on black | 6.05:1 | AA | Lc -39.7 | 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
#F3F5FE
oklch(97.1% 0.012 276.1)
-
Step 100
100
#E5E9FB
oklch(93.6% 0.025 275.9)
-
Step 200
200
#D0D7FA
oklch(88.5% 0.049 276.4)
-
Step 300
300
#B1BCF9
oklch(80.8% 0.087 276.4)
-
Step 400
400
#8A97F6
oklch(70.6% 0.139 276.3)
-
Step 500
500 (this color)
#737EF7
oklch(64.4% 0.178 276.3)
-
Step 600
600
#5A5FE1
oklch(55.5% 0.194 276.4)
-
Step 700
700
#4A4EC4
oklch(49.1% 0.18 276)
-
Step 800
800
#3D419E
oklch(42.8% 0.148 276.3)
-
Step 900
900
#33387E
oklch(37.7% 0.117 276.2)
-
Step 950
950
#1E214A
oklch(27% 0.075 277)
#737EF7 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) | #428FFB | 0.059 |
| Deuteranopia (no green cones) | #3184F4 | 0.064 |
| Tritanopia (no blue cones) | #3399AF | 0.157 |
| Achromatopsia (no color) | #8A8A8A | 0.178 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #737EF7
#737EF7
oklch(64.4% 0.178 276.3)
- #A58C00
#A58C00
oklch(64.4% 0.133 96.4)
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 #737EF7, closest first.
No curated palette has a color within ΔE 0.04 of #737EF7.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower #6A79F7 ΔE 0.018
- Soft Blue #6488EA ΔE 0.037
- Periwinkle #8E82FE ΔE 0.041
- Lavender Blue #8B88F8 ΔE 0.044
- Medium Slate Blue #7B68EE ΔE 0.052
- Perrywinkle #8F8CE7 ΔE 0.062
- Cornflower Blue #6495ED ΔE 0.063
- Medium Purple #9370DB ΔE 0.065
Use #737EF7 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.