#859EDE
Closest named color: Periwinkle Blue (#8F99FB). oklch(70.5% 0.098 267.5), rgb(133, 158, 222).
Aa
Black text reads best on this color (7.94:1).
About this color
#859EDE is a medium-light, moderately saturated blue. In OKLCH its lightness is 71%, its chroma 0.098 and its hue 267°. Its hue sits on the cool side of the wheel. The nearest named color is Periwinkle Blue (#8F99FB), ΔE 0.050 away. Black text reads best on it, at 7.94:1.
| Hue family | Blues |
| Lightness | medium-light (71%) |
| Chroma | moderately saturated (0.098) |
| Temperature | cool |
| Nearest name | Periwinkle Blue (#8F99FB) |
| Black text | 7.94:1 |
| White text | 2.64:1 |
Values
| HEX | #859EDE |
| RGB | rgb(133, 158, 222) |
| HSL | hsl(223, 57%, 70%) |
| OKLCH | oklch(70.5% 0.098 267.5) |
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 #859EDE | 2.64:1 | Fails | Lc -56.6 | Large or bold text, headings |
| Black text on #859EDE | 7.94:1 | AAA | Lc 52.6 | Large or bold text, headings |
| #859EDE text on white | 2.64:1 | Fails | Lc 51.4 | Large or bold text, headings |
| #859EDE text on black | 7.94:1 | AAA | Lc -50.5 | 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
#E4EAF6
oklch(93.6% 0.017 264.5)
-
Step 200
200
#CFD9F1
oklch(88.5% 0.035 267.6)
-
Step 300
300
#AFC0E9
oklch(80.9% 0.061 267.4)
-
Step 400
400 (this color)
#859EDE
oklch(70.5% 0.098 267.5)
-
Step 500
500
#6885D6
oklch(63.1% 0.127 267.8)
-
Step 600
600
#506EC3
oklch(55.7% 0.136 267.3)
-
Step 700
700
#415BA8
oklch(49.1% 0.127 267.6)
-
Step 800
800
#364B88
oklch(42.8% 0.104 267.6)
-
Step 900
900
#2E3F6D
oklch(37.7% 0.082 267.1)
-
Step 950
950
#1B2540
oklch(27% 0.052 267.5)
#859EDE 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) | #88A3E1 | 0.014 |
| Deuteranopia (no green cones) | #7F9CDD | 0.010 |
| Tritanopia (no blue cones) | #68ABB5 | 0.087 |
| Achromatopsia (no color) | #9F9F9F | 0.098 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #859EDE
#859EDE
oklch(70.5% 0.098 267.5)
- #BA9C54
#BA9C54
oklch(70.5% 0.098 87.2)
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 #859EDE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Periwinkle Blue #8F99FB ΔE 0.050
- Perrywinkle #8F8CE7 ΔE 0.053
- Cornflower Blue #6495ED ΔE 0.054
- Greyblue #77A1B5 ΔE 0.068
- Cool Gray #8D99AE ΔE 0.069
- Bluey Grey #89A0B0 ΔE 0.071
- Bluegrey #85A3B2 ΔE 0.072
- Pale Purple #B790D4 ΔE 0.075
Use #859EDE 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.