#859CD1
Closest named color: Cool Gray (#8D99AE). oklch(69.5% 0.083 266.2), rgb(133, 156, 209).
Aa
Black text reads best on this color (7.67:1).
About this color
#859CD1 is a medium-light, moderately saturated blue. In OKLCH its lightness is 70%, its chroma 0.083 and its hue 266°. Its hue sits on the cool side of the wheel. The nearest named color is Cool Gray (#8D99AE), ΔE 0.051 away. Black text reads best on it, at 7.67:1.
| Hue family | Blues |
| Lightness | medium-light (70%) |
| Chroma | moderately saturated (0.083) |
| Temperature | cool |
| Nearest name | Cool Gray (#8D99AE) |
| Black text | 7.67:1 |
| White text | 2.73:1 |
Values
| HEX | #859CD1 |
| RGB | rgb(133, 156, 209) |
| HSL | hsl(222, 45%, 67%) |
| OKLCH | oklch(69.5% 0.083 266.2) |
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 #859CD1 | 2.73:1 | Fails | Lc -58.1 | Large or bold text, headings |
| Black text on #859CD1 | 7.67:1 | AAA | Lc 51.1 | Large or bold text, headings |
| #859CD1 text on white | 2.73:1 | Fails | Lc 52.9 | Large or bold text, headings |
| #859CD1 text on black | 7.67:1 | AAA | Lc -49.0 | 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
#E5EAF4
oklch(93.6% 0.015 264.5)
-
Step 200
200
#D0D9ED
oklch(88.5% 0.029 266.4)
-
Step 300
300
#B1C1E3
oklch(81% 0.051 265.3)
-
Step 400
400 (this color)
#859CD1
oklch(69.5% 0.083 266.2)
-
Step 500
500
#6B87CA
oklch(63% 0.107 266.1)
-
Step 600
600
#5470B6
oklch(55.6% 0.114 266.3)
-
Step 700
700
#445E9D
oklch(49.2% 0.106 265.7)
-
Step 800
800
#384D7F
oklch(42.8% 0.087 265.6)
-
Step 900
900
#304066
oklch(37.6% 0.069 265.9)
-
Step 950
950
#1C263C
oklch(27.1% 0.044 265)
#859CD1 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) | #8AA0D3 | 0.013 |
| Deuteranopia (no green cones) | #8399D0 | 0.009 |
| Tritanopia (no blue cones) | #6EA7AE | 0.075 |
| Achromatopsia (no color) | #9C9C9C | 0.083 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #859CD1
#859CD1
oklch(69.5% 0.083 266.2)
- #B49A5F
#B49A5F
oklch(69.6% 0.083 86.5)
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 #859CD1, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Gray #8D99AE ΔE 0.051
- Greyblue #77A1B5 ΔE 0.052
- Bluey Grey #89A0B0 ΔE 0.054
- Bluegrey #85A3B2 ΔE 0.056
- Perrywinkle #8F8CE7 ΔE 0.061
- Cornflower Blue #6495ED ΔE 0.063
- Cool Steel #97A7B3 ΔE 0.066
- Periwinkle Blue #8F99FB ΔE 0.067
Use #859CD1 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.