#859DCC
Closest named color: Cool Gray (#8D99AE). oklch(69.5% 0.075 263.5), rgb(133, 157, 204).
Aa
Black text reads best on this color (7.69:1).
About this color
#859DCC is a medium-light, moderately saturated blue. In OKLCH its lightness is 70%, its chroma 0.075 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Cool Gray (#8D99AE), ΔE 0.043 away. Black text reads best on it, at 7.69:1.
| Hue family | Blues |
| Lightness | medium-light (70%) |
| Chroma | moderately saturated (0.075) |
| Temperature | cool |
| Nearest name | Cool Gray (#8D99AE) |
| Black text | 7.69:1 |
| White text | 2.73:1 |
Values
| HEX | #859DCC |
| RGB | rgb(133, 157, 204) |
| HSL | hsl(220, 41%, 66%) |
| OKLCH | oklch(69.5% 0.075 263.5) |
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 #859DCC | 2.73:1 | Fails | Lc -58.0 | Large or bold text, headings |
| Black text on #859DCC | 7.69:1 | AAA | Lc 51.2 | Large or bold text, headings |
| #859DCC text on white | 2.73:1 | Fails | Lc 52.8 | Large or bold text, headings |
| #859DCC text on black | 7.69:1 | 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
#E5EAF3
oklch(93.6% 0.013 262.4)
-
Step 200
200
#D0D9EB
oklch(88.4% 0.027 264.4)
-
Step 300
300
#B1C1E0
oklch(80.9% 0.047 263.7)
-
Step 400
400 (this color)
#859DCC
oklch(69.5% 0.075 263.5)
-
Step 500
500
#6B89C4
oklch(63.2% 0.096 263.2)
-
Step 600
600
#5372B0
oklch(55.6% 0.103 263.2)
-
Step 700
700
#445F97
oklch(49.1% 0.096 263.7)
-
Step 800
800
#384E7B
oklch(42.8% 0.08 263.6)
-
Step 900
900
#304163
oklch(37.7% 0.063 263.4)
-
Step 950
950
#1C263A
oklch(26.9% 0.04 263.6)
#859DCC 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) | #8DA0CE | 0.014 |
| Deuteranopia (no green cones) | #869ACB | 0.008 |
| Tritanopia (no blue cones) | #70A7AD | 0.067 |
| Achromatopsia (no color) | #9C9C9C | 0.075 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #859DCC
#859DCC
oklch(69.5% 0.075 263.5)
- #B39966
#B39966
oklch(69.4% 0.075 83.6)
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 #859DCC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Gray #8D99AE ΔE 0.043
- Greyblue #77A1B5 ΔE 0.044
- Bluey Grey #89A0B0 ΔE 0.045
- Bluegrey #85A3B2 ΔE 0.047
- Cool Steel #97A7B3 ΔE 0.058
- Silver Lake Blue #778DA9 ΔE 0.065
- Cool Grey #95A3A6 ΔE 0.066
- Faded Blue #658CBB ΔE 0.067
Use #859DCC 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.