#5F81FA
Closest named color: Cornflower (#6A79F7). oklch(63.9% 0.184 268.9), rgb(95, 129, 250).
Aa
Black text reads best on this color (6.00:1).
About this color
#5F81FA is a medium-light, vivid blue. In OKLCH its lightness is 64%, its chroma 0.184 and its hue 269°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower (#6A79F7), ΔE 0.022 away. Black text reads best on it, at 6.00:1.
| Hue family | Blues |
| Lightness | medium-light (64%) |
| Chroma | vivid (0.184) |
| Temperature | cool |
| Nearest name | Cornflower (#6A79F7) |
| Black text | 6.00:1 |
| White text | 3.49:1 |
Values
| HEX | #5F81FA |
| RGB | rgb(95, 129, 250) |
| HSL | hsl(227, 94%, 68%) |
| OKLCH | oklch(63.9% 0.184 268.9) |
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 #5F81FA | 3.49:1 | AA large text | Lc -67.7 | Content text, not long reading |
| Black text on #5F81FA | 6.00:1 | AA | Lc 41.9 | Non-text elements, placeholder text |
| #5F81FA text on white | 3.49:1 | AA large text | Lc 62.2 | Content text, not long reading |
| #5F81FA text on black | 6.00:1 | AA | Lc -39.5 | 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
#F2F5FE
oklch(97% 0.012 271.3)
-
Step 100
100
#E3EAFC
oklch(93.7% 0.025 268.8)
-
Step 200
200
#CBD9FB
oklch(88.6% 0.049 267.7)
-
Step 300
300
#A9BFFC
oklch(81% 0.09 269)
-
Step 400
400
#7C9BFA
oklch(70.7% 0.144 268.9)
-
Step 500
500 (this color)
#5F81FA
oklch(63.9% 0.184 268.9)
-
Step 600
600
#4564E6
oklch(55.6% 0.2 268.8)
-
Step 700
700
#3852C8
oklch(49.2% 0.185 269)
-
Step 800
800
#2E44A2
oklch(42.8% 0.154 268.9)
-
Step 900
900
#283A80
oklch(37.6% 0.12 269.1)
-
Step 950
950
#17234B
oklch(27% 0.076 268.4)
#5F81FA 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) | #4190FE | 0.042 |
| Deuteranopia (no green cones) | #1E82F7 | 0.049 |
| Tritanopia (no blue cones) | #009DB2 | 0.156 |
| Achromatopsia (no color) | #898989 | 0.184 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5F81FA
#5F81FA
oklch(63.9% 0.184 268.9)
- #AC8600
#AC8600
oklch(63.8% 0.13 88.5)
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 #5F81FA, closest first.
No curated palette has a color within ΔE 0.04 of #5F81FA.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower #6A79F7 ΔE 0.022
- Soft Blue #6488EA ΔE 0.033
- Dodger Blue #1E90FF ΔE 0.053
- Clear Blue #247AFD ΔE 0.054
- Dark Sky Blue #448EE4 ΔE 0.055
- Chefchaouen Blue #4895EF ΔE 0.058
- Cornflower Blue #6495ED ΔE 0.059
- Lavender Blue #8B88F8 ΔE 0.061
Use #5F81FA 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.