#5F70BD
Closest named color: Windows Blue (#3778BF). oklch(56.7% 0.121 272.6), rgb(95, 112, 189).
Aa
White text reads best on this color (4.62:1).
About this color
#5F70BD is a medium-dark, moderately saturated blue. In OKLCH its lightness is 57%, its chroma 0.121 and its hue 273°. Its hue sits on the cool side of the wheel. The nearest named color is Windows Blue (#3778BF), ΔE 0.044 away. White text reads best on it, at 4.62:1.
| Hue family | Blues |
| Lightness | medium-dark (57%) |
| Chroma | moderately saturated (0.121) |
| Temperature | cool |
| Nearest name | Windows Blue (#3778BF) |
| Black text | 4.53:1 |
| White text | 4.62:1 |
Values
| HEX | #5F70BD |
| RGB | rgb(95, 112, 189) |
| HSL | hsl(229, 42%, 56%) |
| OKLCH | oklch(56.7% 0.121 272.6) |
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 #5F70BD | 4.62:1 | AA | Lc -77.5 | Fine for body text |
| Black text on #5F70BD | 4.53:1 | AA | Lc 32.1 | Non-text elements, placeholder text |
| #5F70BD text on white | 4.62:1 | AA | Lc 72.0 | Content text, not long reading |
| #5F70BD text on black | 4.53:1 | AA | Lc -29.7 | Dividers and decoration only |
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
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E6E9F5
oklch(93.5% 0.016 274.8)
-
Step 200
200
#D2D8EE
oklch(88.4% 0.031 273.6)
-
Step 300
300
#B4BFE5
oklch(80.9% 0.055 272.4)
-
Step 400
400
#8E9DD7
oklch(70.6% 0.087 272.8)
-
Step 500
500
#7384CD
oklch(63.1% 0.112 272.9)
-
Step 600
600 (this color)
#5F70BD
oklch(56.7% 0.121 272.6)
-
Step 700
700
#4C5AA0
oklch(49% 0.113 273)
-
Step 800
800
#3E4A81
oklch(42.6% 0.092 272.6)
-
Step 900
900
#353E68
oklch(37.7% 0.073 273.3)
-
Step 950
950
#1F253D
oklch(27.1% 0.046 272.4)
#5F70BD 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) | #5279C0 | 0.026 |
| Deuteranopia (no green cones) | #4871BB | 0.028 |
| Tritanopia (no blue cones) | #39808D | 0.107 |
| Achromatopsia (no color) | #757575 | 0.121 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5F70BD
#5F70BD
oklch(56.7% 0.121 272.6)
- #8E7400
#8E7400
oklch(56.7% 0.116 93.2)
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 #5F70BD, closest first.
No curated palette has a color within ΔE 0.04 of #5F70BD.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Windows Blue #3778BF ΔE 0.044
- French Blue #436BAD ΔE 0.046
- Flat Blue #3C73A8 ΔE 0.054
- Dark Periwinkle #665FD1 ΔE 0.057
- Steel Blue #4682B4 ΔE 0.059
- Cool Blue #4984B8 ΔE 0.060
- Iris #6258C4 ΔE 0.064
- Dull Blue #49759C ΔE 0.064
Use #5F70BD 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.