#859FCD
Closest named color: Greyblue (#77A1B5). oklch(70% 0.074 261.7), rgb(133, 159, 205).
Aa
Black text reads best on this color (7.83:1).
About this color
#859FCD is a medium-light, moderately saturated blue. In OKLCH its lightness is 70%, its chroma 0.074 and its hue 262°. Its hue sits on the cool side of the wheel. The nearest named color is Greyblue (#77A1B5), ΔE 0.043 away. Black text reads best on it, at 7.83:1.
| Hue family | Blues |
| Lightness | medium-light (70%) |
| Chroma | moderately saturated (0.074) |
| Temperature | cool |
| Nearest name | Greyblue (#77A1B5) |
| Black text | 7.83:1 |
| White text | 2.67:1 |
Values
| HEX | #859FCD |
| RGB | rgb(133, 159, 205) |
| HSL | hsl(218, 42%, 66%) |
| OKLCH | oklch(70% 0.074 261.7) |
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 #859FCD | 2.67:1 | Fails | Lc -57.2 | Large or bold text, headings |
| Black text on #859FCD | 7.83:1 | AAA | Lc 52.0 | Large or bold text, headings |
| #859FCD text on white | 2.67:1 | Fails | Lc 52.0 | Large or bold text, headings |
| #859FCD text on black | 7.83:1 | AAA | Lc -49.9 | 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
#F3F5FA
oklch(97% 0.007 268.5)
-
Step 100
100
#E5EAF3
oklch(93.6% 0.013 262.4)
-
Step 200
200
#D0DAEB
oklch(88.6% 0.026 261.1)
-
Step 300
300
#B0C1DF
oklch(80.8% 0.046 261.8)
-
Step 400
400 (this color)
#859FCD
oklch(70% 0.074 261.7)
-
Step 500
500
#6989C3
oklch(63% 0.095 261.8)
-
Step 600
600
#5173AF
oklch(55.7% 0.102 261.2)
-
Step 700
700
#426097
oklch(49.2% 0.096 261.8)
-
Step 800
800
#364E7A
oklch(42.6% 0.079 261.8)
-
Step 900
900
#2F4162
oklch(37.6% 0.062 262)
-
Step 950
950
#1C263A
oklch(26.9% 0.04 263.6)
#859FCD 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) | #8FA2CF | 0.016 |
| Deuteranopia (no green cones) | #889BCC | 0.011 |
| Tritanopia (no blue cones) | #6FA9AF | 0.066 |
| Achromatopsia (no color) | #9E9E9E | 0.074 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #859FCD
#859FCD
oklch(70% 0.074 261.7)
- #B69A69
#B69A69
oklch(70% 0.074 81)
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 #859FCD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greyblue #77A1B5 ΔE 0.043
- Cool Gray #8D99AE ΔE 0.044
- Bluey Grey #89A0B0 ΔE 0.045
- Bluegrey #85A3B2 ΔE 0.045
- Cool Steel #97A7B3 ΔE 0.055
- Cool Grey #95A3A6 ΔE 0.065
- Silver Lake Blue #778DA9 ΔE 0.069
- Faded Blue #658CBB ΔE 0.071
Use #859FCD 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.