#859FBB
Closest named color: Bluey Grey (#89A0B0). oklch(69.2% 0.051 250.5), rgb(133, 159, 187).
Aa
Black text reads best on this color (7.67:1).
About this color
#859FBB is a medium-light, muted blue. In OKLCH its lightness is 69%, its chroma 0.051 and its hue 250°. Its hue sits on the cool side of the wheel. The nearest named color is Bluey Grey (#89A0B0), ΔE 0.018 away. Black text reads best on it, at 7.67:1.
| Hue family | Blues |
| Lightness | medium-light (69%) |
| Chroma | muted (0.051) |
| Temperature | cool |
| Nearest name | Bluey Grey (#89A0B0) |
| Black text | 7.67:1 |
| White text | 2.73:1 |
Values
| HEX | #859FBB |
| RGB | rgb(133, 159, 187) |
| HSL | hsl(211, 28%, 63%) |
| OKLCH | oklch(69.2% 0.051 250.5) |
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 #859FBB | 2.73:1 | Fails | Lc -58.2 | Large or bold text, headings |
| Black text on #859FBB | 7.67:1 | AAA | Lc 51.1 | Large or bold text, headings |
| #859FBB text on white | 2.73:1 | Fails | Lc 52.9 | Large or bold text, headings |
| #859FBB text on black | 7.67:1 | AAA | Lc -48.9 | 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
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E5EAF0
oklch(93.5% 0.01 252.8)
-
Step 200
200
#D1DAE5
oklch(88.5% 0.018 253.4)
-
Step 300
300
#B2C3D5
oklch(81% 0.032 249.7)
-
Step 400
400 (this color)
#859FBB
oklch(69.2% 0.051 250.5)
-
Step 500
500
#6C8DB0
oklch(63.2% 0.065 250.4)
-
Step 600
600
#53769B
oklch(55.5% 0.07 250.5)
-
Step 700
700
#446385
oklch(49% 0.066 251.5)
-
Step 800
800
#38516C
oklch(42.7% 0.055 251)
-
Step 900
900
#304357
oklch(37.6% 0.042 250.3)
-
Step 950
950
#1D2833
oklch(27.2% 0.026 248.8)
#859FBB 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) | #959FBC | 0.021 |
| Deuteranopia (no green cones) | #8E9ABA | 0.017 |
| Tritanopia (no blue cones) | #75A5A8 | 0.043 |
| Achromatopsia (no color) | #9C9C9C | 0.051 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #859FBB
#859FBB
oklch(69.2% 0.051 250.5)
- #B1977A
#B1977A
oklch(69.2% 0.051 69.9)
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 #859FBB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bluey Grey #89A0B0 ΔE 0.018
- Bluegrey #85A3B2 ΔE 0.020
- Greyblue #77A1B5 ΔE 0.021
- Cool Gray #8D99AE ΔE 0.022
- Cool Steel #97A7B3 ΔE 0.038
- Cool Grey #95A3A6 ΔE 0.041
- Silver Lake Blue #778DA9 ΔE 0.056
- Pewter #96A8A1 ΔE 0.057
Use #859FBB 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.