#859EBF
Closest named color: Bluey Grey (#89A0B0). oklch(69.2% 0.056 255.5), rgb(133, 158, 191).
Aa
Black text reads best on this color (7.64:1).
About this color
#859EBF is a medium-light, muted blue. In OKLCH its lightness is 69%, its chroma 0.056 and its hue 255°. Its hue sits on the cool side of the wheel. The nearest named color is Bluey Grey (#89A0B0), ΔE 0.025 away. Black text reads best on it, at 7.64:1.
| Hue family | Blues |
| Lightness | medium-light (69%) |
| Chroma | muted (0.056) |
| Temperature | cool |
| Nearest name | Bluey Grey (#89A0B0) |
| Black text | 7.64:1 |
| White text | 2.74:1 |
Values
| HEX | #859EBF |
| RGB | rgb(133, 158, 191) |
| HSL | hsl(214, 31%, 64%) |
| OKLCH | oklch(69.2% 0.056 255.5) |
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 #859EBF | 2.74:1 | Fails | Lc -58.3 | Large or bold text, headings |
| Black text on #859EBF | 7.64:1 | AAA | Lc 50.9 | Large or bold text, headings |
| #859EBF text on white | 2.74:1 | Fails | Lc 53.1 | Large or bold text, headings |
| #859EBF text on black | 7.64:1 | AAA | Lc -48.7 | 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
#E5EAF1
oklch(93.5% 0.011 256.7)
-
Step 200
200
#D1DAE6
oklch(88.5% 0.019 255.5)
-
Step 300
300
#B2C2D8
oklch(80.9% 0.036 256.4)
-
Step 400
400 (this color)
#859EBF
oklch(69.2% 0.056 255.5)
-
Step 500
500
#6C8CB5
oklch(63.2% 0.072 254.9)
-
Step 600
600
#5475A1
oklch(55.6% 0.079 255.9)
-
Step 700
700
#44628A
oklch(49% 0.074 255.9)
-
Step 800
800
#385070
oklch(42.6% 0.061 255.9)
-
Step 900
900
#31435A
oklch(37.8% 0.046 254.9)
-
Step 950
950
#1D2735
oklch(27% 0.03 256.9)
#859EBF 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) | #929FC1 | 0.018 |
| Deuteranopia (no green cones) | #8C99BE | 0.015 |
| Tritanopia (no blue cones) | #74A5A9 | 0.049 |
| Achromatopsia (no color) | #9C9C9C | 0.056 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #859EBF
#859EBF
oklch(69.2% 0.056 255.5)
- #B19875
#B19875
oklch(69.3% 0.057 75.9)
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 #859EBF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bluey Grey #89A0B0 ΔE 0.025
- Cool Gray #8D99AE ΔE 0.026
- Greyblue #77A1B5 ΔE 0.026
- Bluegrey #85A3B2 ΔE 0.028
- Cool Steel #97A7B3 ΔE 0.043
- Cool Grey #95A3A6 ΔE 0.048
- Silver Lake Blue #778DA9 ΔE 0.056
- Blue Grey #758DA3 ΔE 0.061
Use #859EBF 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.