#5F81DA
Closest named color: Soft Blue (#6488EA). oklch(61.9% 0.14 266.6), rgb(95, 129, 218).
Aa
Black text reads best on this color (5.63:1).
About this color
#5F81DA is a medium-dark, vivid blue. In OKLCH its lightness is 62%, its chroma 0.140 and its hue 267°. Its hue sits on the cool side of the wheel. The nearest named color is Soft Blue (#6488EA), ΔE 0.029 away. Black text reads best on it, at 5.63:1.
| Hue family | Blues |
| Lightness | medium-dark (62%) |
| Chroma | vivid (0.140) |
| Temperature | cool |
| Nearest name | Soft Blue (#6488EA) |
| Black text | 5.63:1 |
| White text | 3.72:1 |
Values
| HEX | #5F81DA |
| RGB | rgb(95, 129, 218) |
| HSL | hsl(223, 62%, 61%) |
| OKLCH | oklch(61.9% 0.14 266.6) |
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 #5F81DA | 3.72:1 | AA large text | Lc -70.1 | Content text, not long reading |
| Black text on #5F81DA | 5.63:1 | AA | Lc 39.5 | Non-text elements, placeholder text |
| #5F81DA text on white | 3.72:1 | AA large text | Lc 64.6 | Content text, not long reading |
| #5F81DA text on black | 5.63:1 | AA | Lc -37.0 | 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
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E4EAF8
oklch(93.7% 0.02 267.3)
-
Step 200
200
#CED9F3
oklch(88.5% 0.038 267.3)
-
Step 300
300
#ACC0EE
oklch(80.9% 0.069 266.5)
-
Step 400
400
#819EE5
oklch(70.6% 0.11 266.7)
-
Step 500
500 (this color)
#5F81DA
oklch(61.9% 0.14 266.6)
-
Step 600
600
#4A6CCC
oklch(55.5% 0.153 266.7)
-
Step 700
700
#3C5AB0
oklch(49.1% 0.141 266.7)
-
Step 800
800
#314A8F
oklch(42.7% 0.118 266.5)
-
Step 900
900
#2B3E72
oklch(37.6% 0.092 266.9)
-
Step 950
950
#192543
oklch(27% 0.058 266.1)
#5F81DA 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) | #5B8ADD | 0.023 |
| Deuteranopia (no green cones) | #4B7FD8 | 0.023 |
| Tritanopia (no blue cones) | #0595A3 | 0.126 |
| Achromatopsia (no color) | #848484 | 0.140 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5F81DA
#5F81DA
oklch(61.9% 0.14 266.6)
- #A77F00
#A77F00
oklch(61.8% 0.127 86.3)
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 #5F81DA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Soft Blue #6488EA ΔE 0.029
- Dark Sky Blue #448EE4 ΔE 0.039
- Cornflower #6A79F7 ΔE 0.052
- Chefchaouen Blue #4895EF ΔE 0.056
- Cornflower Blue #6495ED ΔE 0.057
- Cool Blue #4984B8 ΔE 0.061
- Water Blue #0E87CC ΔE 0.062
- Faded Blue #658CBB ΔE 0.063
Use #5F81DA 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.