#5F74D2
Closest named color: Dark Periwinkle (#665FD1). oklch(58.8% 0.145 271.8), rgb(95, 116, 210).
Aa
Black text reads best on this color (4.91:1).
About this color
#5F74D2 is a medium-dark, vivid blue. In OKLCH its lightness is 59%, its chroma 0.145 and its hue 272°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Periwinkle (#665FD1), ΔE 0.052 away. Black text reads best on it, at 4.91:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.145) |
| Temperature | cool |
| Nearest name | Dark Periwinkle (#665FD1) |
| Black text | 4.91:1 |
| White text | 4.27:1 |
Values
| HEX | #5F74D2 |
| RGB | rgb(95, 116, 210) |
| HSL | hsl(229, 56%, 60%) |
| OKLCH | oklch(58.8% 0.145 271.8) |
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 #5F74D2 | 4.27:1 | AA large text | Lc -74.8 | Content text, not long reading |
| Black text on #5F74D2 | 4.91:1 | AA | Lc 34.7 | Non-text elements, placeholder text |
| #5F74D2 text on white | 4.27:1 | AA large text | Lc 69.3 | Content text, not long reading |
| #5F74D2 text on black | 4.91:1 | AA | Lc -32.3 | 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 600.
-
Step 50
50
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E5E9F7
oklch(93.5% 0.019 273.2)
-
Step 200
200
#D0D8F2
oklch(88.4% 0.037 272)
-
Step 300
300
#B1BFEC
oklch(80.9% 0.066 271.4)
-
Step 400
400
#899CE2
oklch(70.6% 0.105 271.9)
-
Step 500
500
#6D83DA
oklch(63.2% 0.133 271.4)
-
Step 600
600 (this color)
#5F74D2
oklch(58.8% 0.145 271.8)
-
Step 700
700
#4758AC
oklch(49.1% 0.135 272)
-
Step 800
800
#3A488C
oklch(42.6% 0.113 272)
-
Step 900
900
#323D70
oklch(37.7% 0.088 272.4)
-
Step 950
950
#1D2441
oklch(26.9% 0.055 272)
#5F74D2 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) | #4A80D6 | 0.035 |
| Deuteranopia (no green cones) | #3C76D0 | 0.037 |
| Tritanopia (no blue cones) | #218999 | 0.130 |
| Achromatopsia (no color) | #7A7A7A | 0.145 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5F74D2
#5F74D2
oklch(58.8% 0.145 271.8)
- #967900
#967900
oklch(58.7% 0.12 92)
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 #5F74D2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Periwinkle #665FD1 ΔE 0.052
- Windows Blue #3778BF ΔE 0.053
- Royal Blue #4169E1 ΔE 0.054
- Cornflower #6A79F7 ΔE 0.059
- Soft Blue #6488EA ΔE 0.060
- Slate Blue #6A5ACD ΔE 0.064
- Light Indigo #6D5ACF ΔE 0.064
- Medium Slate Blue #7B68EE ΔE 0.065
Use #5F74D2 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.