#859DED
Closest named color: Periwinkle Blue (#8F99FB). oklch(71% 0.12 270.4), rgb(133, 157, 237).
Aa
Black text reads best on this color (8.04:1).
About this color
#859DED is a medium-light, moderately saturated blue. In OKLCH its lightness is 71%, its chroma 0.120 and its hue 270°. Its hue sits on the cool side of the wheel. The nearest named color is Periwinkle Blue (#8F99FB), ΔE 0.028 away. Black text reads best on it, at 8.04:1.
| Hue family | Blues |
| Lightness | medium-light (71%) |
| Chroma | moderately saturated (0.120) |
| Temperature | cool |
| Nearest name | Periwinkle Blue (#8F99FB) |
| Black text | 8.04:1 |
| White text | 2.61:1 |
Values
| HEX | #859DED |
| RGB | rgb(133, 157, 237) |
| HSL | hsl(226, 74%, 73%) |
| OKLCH | oklch(71% 0.12 270.4) |
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 #859DED | 2.61:1 | Fails | Lc -56.0 | Large or bold text, headings |
| Black text on #859DED | 8.04:1 | AAA | Lc 53.2 | Large or bold text, headings |
| #859DED text on white | 2.61:1 | Fails | Lc 50.9 | Large or bold text, headings |
| #859DED text on black | 8.04:1 | AAA | Lc -51.0 | 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
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E4EAF9
oklch(93.7% 0.021 268.4)
-
Step 200
200
#CED8F6
oklch(88.4% 0.043 270.9)
-
Step 300
300
#AEBFF2
oklch(80.9% 0.075 270.3)
-
Step 400
400 (this color)
#859DED
oklch(71% 0.12 270.4)
-
Step 500
500
#6781E6
oklch(63.1% 0.154 270.6)
-
Step 600
600
#5068D4
oklch(55.6% 0.168 270.6)
-
Step 700
700
#4156B8
oklch(49.2% 0.156 270.5)
-
Step 800
800
#354795
oklch(42.8% 0.129 270.3)
-
Step 900
900
#2E3C76
oklch(37.6% 0.1 270.7)
-
Step 950
950
#1B2445
oklch(27.1% 0.063 270.3)
#859DED 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) | #80A5F0 | 0.021 |
| Deuteranopia (no green cones) | #779CEB | 0.018 |
| Tritanopia (no blue cones) | #60ADBA | 0.107 |
| Achromatopsia (no color) | #A0A0A0 | 0.121 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #859DED
#859DED
oklch(71% 0.12 270.4)
- #BE9E3D
#BE9E3D
oklch(71% 0.12 90.6)
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 #859DED, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Periwinkle Blue #8F99FB ΔE 0.028
- Perrywinkle #8F8CE7 ΔE 0.043
- Cornflower Blue #6495ED ΔE 0.046
- Lavender Blue #8B88F8 ΔE 0.059
- Chefchaouen Blue #4895EF ΔE 0.070
- Carolina Blue #8AB8FE ΔE 0.071
- Soft Blue #6488EA ΔE 0.072
- Periwinkle #8E82FE ΔE 0.077
Use #859DED 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.