#859CD9
Closest named color: Perrywinkle (#8F8CE7). oklch(69.9% 0.094 268.1), rgb(133, 156, 217).
Aa
Black text reads best on this color (7.75:1).
About this color
#859CD9 is a medium-light, moderately saturated blue. In OKLCH its lightness is 70%, its chroma 0.094 and its hue 268°. Its hue sits on the cool side of the wheel. The nearest named color is Perrywinkle (#8F8CE7), ΔE 0.052 away. Black text reads best on it, at 7.75:1.
| Hue family | Blues |
| Lightness | medium-light (70%) |
| Chroma | moderately saturated (0.094) |
| Temperature | cool |
| Nearest name | Perrywinkle (#8F8CE7) |
| Black text | 7.75:1 |
| White text | 2.70:1 |
Values
| HEX | #859CD9 |
| RGB | rgb(133, 156, 217) |
| HSL | hsl(224, 53%, 69%) |
| OKLCH | oklch(69.9% 0.094 268.1) |
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 #859CD9 | 2.70:1 | Fails | Lc -57.7 | Large or bold text, headings |
| Black text on #859CD9 | 7.75:1 | AAA | Lc 51.6 | Large or bold text, headings |
| #859CD9 text on white | 2.70:1 | Fails | Lc 52.5 | Large or bold text, headings |
| #859CD9 text on black | 7.75:1 | AAA | Lc -49.4 | 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
#F3F5FB
oklch(97% 0.008 271.3)
-
Step 100
100
#E5EAF6
oklch(93.7% 0.017 267.8)
-
Step 200
200
#D0D9EF
oklch(88.5% 0.032 268)
-
Step 300
300
#B0C0E7
oklch(80.9% 0.058 267.6)
-
Step 400
400 (this color)
#859CD9
oklch(69.9% 0.094 268.1)
-
Step 500
500
#6A86D2
oklch(63.2% 0.119 267.6)
-
Step 600
600
#536EBF
oklch(55.6% 0.13 268.1)
-
Step 700
700
#435BA5
oklch(49% 0.122 268.2)
-
Step 800
800
#374B86
oklch(42.7% 0.101 267.9)
-
Step 900
900
#303F6B
oklch(37.7% 0.078 268.3)
-
Step 950
950
#1C253F
oklch(27% 0.05 268.4)
#859CD9 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) | #87A1DC | 0.014 |
| Deuteranopia (no green cones) | #809AD8 | 0.009 |
| Tritanopia (no blue cones) | #6AA8B1 | 0.084 |
| Achromatopsia (no color) | #9D9D9D | 0.094 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #859CD9
#859CD9
oklch(69.9% 0.094 268.1)
- #B69B56
#B69B56
oklch(69.9% 0.094 88.5)
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 #859CD9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Perrywinkle #8F8CE7 ΔE 0.052
- Cornflower Blue #6495ED ΔE 0.055
- Periwinkle Blue #8F99FB ΔE 0.055
- Cool Gray #8D99AE ΔE 0.063
- Greyblue #77A1B5 ΔE 0.063
- Bluey Grey #89A0B0 ΔE 0.066
- Bluegrey #85A3B2 ΔE 0.067
- Faded Blue #658CBB ΔE 0.073
Use #859CD9 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.