#859BCA
Closest named color: Cool Gray (#8D99AE). oklch(69% 0.074 265), rgb(133, 155, 202).
Aa
Black text reads best on this color (7.53:1).
About this color
#859BCA is a medium-light, moderately saturated blue. In OKLCH its lightness is 69%, its chroma 0.074 and its hue 265°. Its hue sits on the cool side of the wheel. The nearest named color is Cool Gray (#8D99AE), ΔE 0.041 away. Black text reads best on it, at 7.53:1.
| Hue family | Blues |
| Lightness | medium-light (69%) |
| Chroma | moderately saturated (0.074) |
| Temperature | cool |
| Nearest name | Cool Gray (#8D99AE) |
| Black text | 7.53:1 |
| White text | 2.78:1 |
Values
| HEX | #859BCA |
| RGB | rgb(133, 155, 202) |
| HSL | hsl(221, 39%, 66%) |
| OKLCH | oklch(69% 0.074 265) |
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 #859BCA | 2.78:1 | Fails | Lc -58.9 | Large or bold text, headings |
| Black text on #859BCA | 7.53:1 | AAA | Lc 50.4 | Large or bold text, headings |
| #859BCA text on white | 2.78:1 | Fails | Lc 53.6 | Large or bold text, headings |
| #859BCA text on black | 7.53:1 | AAA | Lc -48.2 | 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
#D1D9EB
oklch(88.5% 0.026 266.6)
-
Step 300
300
#B2C1DF
oklch(80.9% 0.046 264.3)
-
Step 400
400 (this color)
#859BCA
oklch(69% 0.074 265)
-
Step 500
500
#6D88C3
oklch(63% 0.095 265)
-
Step 600
600
#5671B0
oklch(55.6% 0.103 265.6)
-
Step 700
700
#465F97
oklch(49.2% 0.095 264.9)
-
Step 800
800
#3A4D7A
oklch(42.6% 0.079 265.8)
-
Step 900
900
#314163
oklch(37.8% 0.062 264.4)
-
Step 950
950
#1D263A
oklch(27% 0.04 265.3)
#859BCA 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) | #8B9ECC | 0.012 |
| Deuteranopia (no green cones) | #8598C9 | 0.008 |
| Tritanopia (no blue cones) | #71A5AB | 0.067 |
| Achromatopsia (no color) | #9B9B9B | 0.074 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #859BCA
#859BCA
oklch(69% 0.074 265)
- #B09865
#B09865
oklch(68.9% 0.074 85.3)
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 #859BCA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Gray #8D99AE ΔE 0.041
- Greyblue #77A1B5 ΔE 0.044
- Bluey Grey #89A0B0 ΔE 0.046
- Bluegrey #85A3B2 ΔE 0.048
- Cool Steel #97A7B3 ΔE 0.060
- Silver Lake Blue #778DA9 ΔE 0.060
- Faded Blue #658CBB ΔE 0.063
- Cool Grey #95A3A6 ΔE 0.067
Use #859BCA 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.