#859CD3
Closest named color: Cool Gray (#8D99AE). oklch(69.6% 0.085 266.7), rgb(133, 156, 211).
Aa
Black text reads best on this color (7.69:1).
About this color
#859CD3 is a medium-light, moderately saturated blue. In OKLCH its lightness is 70%, its chroma 0.085 and its hue 267°. Its hue sits on the cool side of the wheel. The nearest named color is Cool Gray (#8D99AE), ΔE 0.054 away. Black text reads best on it, at 7.69:1.
| Hue family | Blues |
| Lightness | medium-light (70%) |
| Chroma | moderately saturated (0.085) |
| Temperature | cool |
| Nearest name | Cool Gray (#8D99AE) |
| Black text | 7.69:1 |
| White text | 2.72:1 |
Values
| HEX | #859CD3 |
| RGB | rgb(133, 156, 211) |
| HSL | hsl(222, 47%, 67%) |
| OKLCH | oklch(69.6% 0.085 266.7) |
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 #859CD3 | 2.72:1 | Fails | Lc -58.0 | Large or bold text, headings |
| Black text on #859CD3 | 7.69:1 | AAA | Lc 51.2 | Large or bold text, headings |
| #859CD3 text on white | 2.72:1 | Fails | Lc 52.8 | Large or bold text, headings |
| #859CD3 text on black | 7.69:1 | AAA | Lc -49.1 | Large or bold text, headings |
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 400.
-
Step 50
50
#F3F5FA
oklch(97% 0.007 268.5)
-
Step 100
100
#E5EAF5
oklch(93.6% 0.016 266.3)
-
Step 200
200
#D0D9ED
oklch(88.5% 0.029 266.4)
-
Step 300
300
#B1C0E4
oklch(80.8% 0.054 267.4)
-
Step 400
400 (this color)
#859CD3
oklch(69.6% 0.085 266.7)
-
Step 500
500
#6B87CC
oklch(63.1% 0.109 266.5)
-
Step 600
600
#5370B9
oklch(55.7% 0.119 266.3)
-
Step 700
700
#445D9F
oklch(49.1% 0.11 266.7)
-
Step 800
800
#384C81
oklch(42.7% 0.092 266.9)
-
Step 900
900
#304067
oklch(37.7% 0.07 266.2)
-
Step 950
950
#1C263D
oklch(27.1% 0.045 265.6)
#859CD3 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) | #8AA0D5 | 0.013 |
| Deuteranopia (no green cones) | #8299D2 | 0.009 |
| Tritanopia (no blue cones) | #6DA7AF | 0.076 |
| Achromatopsia (no color) | #9C9C9C | 0.085 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #859CD3
#859CD3
oklch(69.6% 0.085 266.7)
- #B49A5D
#B49A5D
oklch(69.6% 0.086 87.1)
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 #859CD3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Gray #8D99AE ΔE 0.054
- Greyblue #77A1B5 ΔE 0.055
- Bluey Grey #89A0B0 ΔE 0.057
- Perrywinkle #8F8CE7 ΔE 0.059
- Bluegrey #85A3B2 ΔE 0.059
- Cornflower Blue #6495ED ΔE 0.061
- Periwinkle Blue #8F99FB ΔE 0.064
- Cool Steel #97A7B3 ΔE 0.068
Use #859CD3 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.