#5F73F9
Closest named color: Cornflower (#6A79F7). oklch(61.2% 0.199 272.7), rgb(95, 115, 249).
Aa
Black text reads best on this color (5.30:1).
About this color
#5F73F9 is a medium-dark, vivid blue. In OKLCH its lightness is 61%, its chroma 0.199 and its hue 273°. 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 5.30:1.
| Hue family | Blues |
| Lightness | medium-dark (61%) |
| Chroma | vivid (0.199) |
| Temperature | cool |
| Nearest name | Cornflower (#6A79F7) |
| Black text | 5.30:1 |
| White text | 3.95:1 |
Values
| HEX | #5F73F9 |
| RGB | rgb(95, 115, 249) |
| HSL | hsl(232, 93%, 67%) |
| OKLCH | oklch(61.2% 0.199 272.7) |
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 #5F73F9 | 3.95:1 | AA large text | Lc -72.1 | Content text, not long reading |
| Black text on #5F73F9 | 5.30:1 | AA | Lc 37.5 | Non-text elements, placeholder text |
| #5F73F9 text on white | 3.95:1 | AA large text | Lc 66.6 | Content text, not long reading |
| #5F73F9 text on black | 5.30:1 | AA | Lc -35.1 | 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
#E3E9FD
oklch(93.5% 0.028 272.5)
-
Step 200
200
#CDD8FE
oklch(88.6% 0.054 272.5)
-
Step 300
300
#ACBDFF
oklch(80.9% 0.095 273)
-
Step 400
400
#8198FF
oklch(70.7% 0.153 272.5)
-
Step 500
500 (this color)
#5F73F9
oklch(61.2% 0.199 272.7)
-
Step 600
600
#4E5DEF
oklch(55.5% 0.217 272.6)
-
Step 700
700
#404BD0
oklch(49% 0.202 272.7)
-
Step 800
800
#343FA8
oklch(42.7% 0.167 272.5)
-
Step 900
900
#2D3785
oklch(37.7% 0.13 273)
-
Step 950
950
#1A214E
oklch(27% 0.083 273)
#5F73F9 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) | #0C87FE | 0.065 |
| Deuteranopia (no green cones) | #0079F6 | 0.060 |
| Tritanopia (no blue cones) | #0093AB | 0.169 |
| Achromatopsia (no color) | #808080 | 0.200 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5F73F9
#5F73F9
oklch(61.2% 0.199 272.7)
- #9E8100
#9E8100
oklch(61.3% 0.125 93)
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 #5F73F9, closest first.
No curated palette has a color within ΔE 0.04 of #5F73F9.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower #6A79F7 ΔE 0.022
- Medium Slate Blue #7B68EE ΔE 0.045
- Clear Blue #247AFD ΔE 0.049
- Royal Blue #4169E1 ΔE 0.057
- Neon Blue #4361EE ΔE 0.060
- Soft Blue #6488EA ΔE 0.061
- Cerulean Blue #056EEE ΔE 0.070
- Dark Periwinkle #665FD1 ΔE 0.073
Use #5F73F9 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.