#5B7CFF
Closest named color: Cornflower (#6A79F7). oklch(63.1% 0.198 269.4), rgb(91, 124, 255).
Aa
Black text reads best on this color (5.77:1).
About this color
#5B7CFF is a medium-light, vivid blue. In OKLCH its lightness is 63%, its chroma 0.198 and its hue 269°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower (#6A79F7), ΔE 0.021 away. Black text reads best on it, at 5.77:1.
| Hue family | Blues |
| Lightness | medium-light (63%) |
| Chroma | vivid (0.198) |
| Temperature | cool |
| Nearest name | Cornflower (#6A79F7) |
| Black text | 5.77:1 |
| White text | 3.63:1 |
Values
| HEX | #5B7CFF |
| RGB | rgb(91, 124, 255) |
| HSL | hsl(228, 100%, 68%) |
| OKLCH | oklch(63.1% 0.198 269.4) |
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 #5B7CFF | 3.63:1 | AA large text | Lc -69.1 | Content text, not long reading |
| Black text on #5B7CFF | 5.77:1 | AA | Lc 40.5 | Non-text elements, placeholder text |
| #5B7CFF text on white | 3.63:1 | AA large text | Lc 63.6 | Content text, not long reading |
| #5B7CFF text on black | 5.77:1 | AA | Lc -38.1 | 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
#F2F5FF
oklch(97.1% 0.014 272.7)
-
Step 100
100
#E2EAFD
oklch(93.7% 0.027 267.5)
-
Step 200
200
#CBD8FE
oklch(88.5% 0.054 270.4)
-
Step 300
300
#A8BEFF
oklch(80.9% 0.096 269.8)
-
Step 400
400
#7B9AFF
oklch(70.8% 0.152 269.4)
-
Step 500
500 (this color)
#5B7CFF
oklch(63.1% 0.198 269.4)
-
Step 600
600
#4461EE
oklch(55.6% 0.214 269.3)
-
Step 700
700
#374FD0
oklch(49.2% 0.2 269.4)
-
Step 800
800
#2D41A8
oklch(42.6% 0.166 269.5)
-
Step 900
900
#273985
oklch(37.7% 0.129 269.2)
-
Step 950
950
#17224E
oklch(27% 0.082 269.6)
#5B7CFF 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) | #2A8EFF | 0.053 |
| Deuteranopia (no green cones) | #007FFC | 0.053 |
| Tritanopia (no blue cones) | #009BB2 | 0.164 |
| Achromatopsia (no color) | #868686 | 0.198 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B7CFF
#5B7CFF
oklch(63.1% 0.198 269.4)
- #A88400
#A88400
oklch(63% 0.129 89.3)
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 #5B7CFF, closest first.
No curated palette has a color within ΔE 0.04 of #5B7CFF.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower #6A79F7 ΔE 0.021
- Clear Blue #247AFD ΔE 0.046
- Soft Blue #6488EA ΔE 0.048
- Dodger Blue #1E90FF ΔE 0.059
- Medium Slate Blue #7B68EE ΔE 0.061
- Dark Sky Blue #448EE4 ΔE 0.068
- Periwinkle #8E82FE ΔE 0.070
- Chefchaouen Blue #4895EF ΔE 0.071
Use #5B7CFF 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.