#859FCA
Closest named color: Greyblue (#77A1B5). oklch(69.9% 0.07 260.4), rgb(133, 159, 202).
Aa
Black text reads best on this color (7.80:1).
About this color
#859FCA is a medium-light, muted blue. In OKLCH its lightness is 70%, its chroma 0.070 and its hue 260°. Its hue sits on the cool side of the wheel. The nearest named color is Greyblue (#77A1B5), ΔE 0.039 away. Black text reads best on it, at 7.80:1.
| Hue family | Blues |
| Lightness | medium-light (70%) |
| Chroma | muted (0.070) |
| Temperature | cool |
| Nearest name | Greyblue (#77A1B5) |
| Black text | 7.80:1 |
| White text | 2.68:1 |
Values
| HEX | #859FCA |
| RGB | rgb(133, 159, 202) |
| HSL | hsl(217, 39%, 66%) |
| OKLCH | oklch(69.9% 0.07 260.4) |
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 #859FCA | 2.68:1 | Fails | Lc -57.4 | Large or bold text, headings |
| Black text on #859FCA | 7.80:1 | AAA | Lc 51.8 | Large or bold text, headings |
| #859FCA text on white | 2.68:1 | Fails | Lc 52.2 | Large or bold text, headings |
| #859FCA text on black | 7.80:1 | AAA | Lc -49.7 | 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
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E5EAF3
oklch(93.6% 0.013 262.4)
-
Step 200
200
#D0DAEA
oklch(88.6% 0.025 259.8)
-
Step 300
300
#B1C2DE
oklch(81% 0.044 260.4)
-
Step 400
400 (this color)
#859FCA
oklch(69.9% 0.07 260.4)
-
Step 500
500
#6A8AC0
oklch(63.1% 0.09 260.6)
-
Step 600
600
#5173AC
oklch(55.5% 0.098 260.3)
-
Step 700
700
#426094
oklch(49% 0.091 260.9)
-
Step 800
800
#374F78
oklch(42.8% 0.075 260.7)
-
Step 900
900
#2F4261
oklch(37.8% 0.059 259.9)
-
Step 950
950
#1C2739
oklch(27.1% 0.037 260)
#859FCA 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) | #90A1CC | 0.016 |
| Deuteranopia (no green cones) | #899BC9 | 0.011 |
| Tritanopia (no blue cones) | #70A8AD | 0.063 |
| Achromatopsia (no color) | #9E9E9E | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #859FCA
#859FCA
oklch(69.9% 0.07 260.4)
- #B59A6C
#B59A6C
oklch(69.9% 0.07 80.5)
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 #859FCA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greyblue #77A1B5 ΔE 0.039
- Bluey Grey #89A0B0 ΔE 0.040
- Cool Gray #8D99AE ΔE 0.040
- Bluegrey #85A3B2 ΔE 0.041
- Cool Steel #97A7B3 ΔE 0.052
- Cool Grey #95A3A6 ΔE 0.061
- Silver Lake Blue #778DA9 ΔE 0.066
- Faded Blue #658CBB ΔE 0.070
Use #859FCA 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.