#5F75DC
Closest named color: Cornflower (#6A79F7). oklch(59.6% 0.158 271.8), rgb(95, 117, 220).
Aa
Black text reads best on this color (5.06:1).
About this color
#5F75DC is a medium-dark, vivid blue. In OKLCH its lightness is 60%, its chroma 0.158 and its hue 272°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower (#6A79F7), ΔE 0.044 away. Black text reads best on it, at 5.06:1.
| Hue family | Blues |
| Lightness | medium-dark (60%) |
| Chroma | vivid (0.158) |
| Temperature | cool |
| Nearest name | Cornflower (#6A79F7) |
| Black text | 5.06:1 |
| White text | 4.14:1 |
Values
| HEX | #5F75DC |
| RGB | rgb(95, 117, 220) |
| HSL | hsl(229, 64%, 62%) |
| OKLCH | oklch(59.6% 0.158 271.8) |
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 #5F75DC | 4.14:1 | AA large text | Lc -73.8 | Content text, not long reading |
| Black text on #5F75DC | 5.06:1 | AA | Lc 35.8 | Non-text elements, placeholder text |
| #5F75DC text on white | 4.14:1 | AA large text | Lc 68.3 | Content text, not long reading |
| #5F75DC text on black | 5.06:1 | AA | Lc -33.4 | 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
#F3F5FD
oklch(97.1% 0.011 274.9)
-
Step 100
100
#E4E9F9
oklch(93.5% 0.022 272.1)
-
Step 200
200
#CFD8F6
oklch(88.5% 0.042 272.3)
-
Step 300
300
#AFBEF3
oklch(80.9% 0.077 272.3)
-
Step 400
400
#859BEE
oklch(70.7% 0.124 271.6)
-
Step 500
500 (this color)
#5F75DC
oklch(59.6% 0.158 271.8)
-
Step 600
600
#5267D6
oklch(55.7% 0.171 271.7)
-
Step 700
700
#4355BA
oklch(49.2% 0.16 271.7)
-
Step 800
800
#374696
oklch(42.7% 0.132 271.7)
-
Step 900
900
#2F3C78
oklch(37.8% 0.103 271.5)
-
Step 950
950
#1B2346
oklch(26.9% 0.066 271.6)
#5F75DC 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) | #4482E0 | 0.039 |
| Deuteranopia (no green cones) | #3277DA | 0.044 |
| Tritanopia (no blue cones) | #078C9E | 0.141 |
| Achromatopsia (no color) | #7C7C7C | 0.158 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5F75DC
#5F75DC
oklch(59.6% 0.158 271.8)
- #997C00
#997C00
oklch(59.7% 0.122 92.4)
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 #5F75DC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower #6A79F7 ΔE 0.044
- Royal Blue #4169E1 ΔE 0.050
- Soft Blue #6488EA ΔE 0.052
- Dark Periwinkle #665FD1 ΔE 0.054
- Medium Slate Blue #7B68EE ΔE 0.056
- Windows Blue #3778BF ΔE 0.064
- Dark Sky Blue #448EE4 ΔE 0.066
- Light Indigo #6D5ACF ΔE 0.067
Use #5F75DC 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.