#737DF9
Closest named color: Cornflower (#6A79F7). oklch(64.3% 0.182 276.5), rgb(115, 125, 249).
Aa
Black text reads best on this color (6.03:1).
About this color
#737DF9 is a medium-light, vivid blue. In OKLCH its lightness is 64%, its chroma 0.182 and its hue 277°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower (#6A79F7), ΔE 0.016 away. Black text reads best on it, at 6.03:1.
| Hue family | Blues |
| Lightness | medium-light (64%) |
| Chroma | vivid (0.182) |
| Temperature | cool |
| Nearest name | Cornflower (#6A79F7) |
| Black text | 6.03:1 |
| White text | 3.48:1 |
Values
| HEX | #737DF9 |
| RGB | rgb(115, 125, 249) |
| HSL | hsl(236, 92%, 71%) |
| OKLCH | oklch(64.3% 0.182 276.5) |
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 #737DF9 | 3.48:1 | AA large text | Lc -67.6 | Content text, not long reading |
| Black text on #737DF9 | 6.03:1 | AA | Lc 42.0 | Non-text elements, placeholder text |
| #737DF9 text on white | 3.48:1 | AA large text | Lc 62.1 | Content text, not long reading |
| #737DF9 text on black | 6.03:1 | AA | Lc -39.6 | 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
#E5E9FC
oklch(93.7% 0.026 276.4)
-
Step 200
200
#D0D7FA
oklch(88.5% 0.049 276.4)
-
Step 300
300
#B1BCFA
oklch(80.9% 0.089 276.4)
-
Step 400
400
#8A97F8
oklch(70.8% 0.142 276.4)
-
Step 500
500 (this color)
#737DF9
oklch(64.3% 0.182 276.5)
-
Step 600
600
#5A5EE4
oklch(55.6% 0.199 276.5)
-
Step 700
700
#4B4DC6
oklch(49.2% 0.184 276.5)
-
Step 800
800
#3D40A0
oklch(42.8% 0.152 276.5)
-
Step 900
900
#33377F
oklch(37.6% 0.12 276.6)
-
Step 950
950
#1E214A
oklch(27% 0.075 277)
#737DF9 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) | #3E8FFD | 0.063 |
| Deuteranopia (no green cones) | #2A84F6 | 0.068 |
| Tritanopia (no blue cones) | #3199AF | 0.161 |
| Achromatopsia (no color) | #898989 | 0.183 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #737DF9
#737DF9
oklch(64.3% 0.182 276.5)
- #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 #737DF9, closest first.
No curated palette has a color within ΔE 0.04 of #737DF9.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower #6A79F7 ΔE 0.016
- Soft Blue #6488EA ΔE 0.041
- Periwinkle #8E82FE ΔE 0.042
- Lavender Blue #8B88F8 ΔE 0.046
- Medium Slate Blue #7B68EE ΔE 0.050
- Perrywinkle #8F8CE7 ΔE 0.066
- Medium Purple #9370DB ΔE 0.066
- Cornflower Blue #6495ED ΔE 0.067
Use #737DF9 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.