#5F81FD
Closest named color: Cornflower (#6A79F7). oklch(64.1% 0.188 269), rgb(95, 129, 253).
Aa
Black text reads best on this color (6.04:1).
About this color
#5F81FD is a medium-light, vivid blue. In OKLCH its lightness is 64%, its chroma 0.188 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 6.04:1.
| Hue family | Blues |
| Lightness | medium-light (64%) |
| Chroma | vivid (0.188) |
| Temperature | cool |
| Nearest name | Cornflower (#6A79F7) |
| Black text | 6.04:1 |
| White text | 3.47:1 |
Values
| HEX | #5F81FD |
| RGB | rgb(95, 129, 253) |
| HSL | hsl(227, 98%, 68%) |
| OKLCH | oklch(64.1% 0.188 269) |
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 #5F81FD | 3.47:1 | AA large text | Lc -67.4 | Content text, not long reading |
| Black text on #5F81FD | 6.04:1 | AA | Lc 42.1 | Non-text elements, placeholder text |
| #5F81FD text on white | 3.47:1 | AA large text | Lc 62.0 | Content text, not long reading |
| #5F81FD text on black | 6.04:1 | 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
#F2F5FE
oklch(97% 0.012 271.3)
-
Step 100
100
#E2EAFC
oklch(93.6% 0.026 266.6)
-
Step 200
200
#CBD8FC
oklch(88.4% 0.052 269.6)
-
Step 300
300
#A8BFFD
oklch(81% 0.092 268.6)
-
Step 400
400
#7B9AFC
oklch(70.6% 0.148 269.1)
-
Step 500
500 (this color)
#5F81FD
oklch(64.1% 0.188 269)
-
Step 600
600
#4563E8
oklch(55.6% 0.203 269.1)
-
Step 700
700
#3751CA
oklch(49.1% 0.19 268.9)
-
Step 800
800
#2E43A3
oklch(42.7% 0.157 269.2)
-
Step 900
900
#283A82
oklch(37.7% 0.123 269.2)
-
Step 950
950
#17234C
oklch(27.1% 0.077 268.6)
#5F81FD 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) | #3D91FF | 0.045 |
| Deuteranopia (no green cones) | #1483FA | 0.052 |
| Tritanopia (no blue cones) | #009EB3 | 0.159 |
| Achromatopsia (no color) | #8A8A8A | 0.188 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5F81FD
#5F81FD
oklch(64.1% 0.188 269)
- #AC8700
#AC8700
oklch(64% 0.131 89.2)
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 #5F81FD, closest first.
No curated palette has a color within ΔE 0.04 of #5F81FD.
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 0.036
- Dodger Blue #1E90FF ΔE 0.053
- Clear Blue #247AFD ΔE 0.054
- Dark Sky Blue #448EE4 ΔE 0.058
- Chefchaouen Blue #4895EF ΔE 0.060
- Cornflower Blue #6495ED ΔE 0.061
- Periwinkle #8E82FE ΔE 0.062
Use #5F81FD 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.