#819DAE
Closest named color: Bluey Grey (#89A0B0). oklch(68.1% 0.04 234.8), rgb(129, 157, 174).
Aa
Black text reads best on this color (7.36:1).
About this color
#819DAE is a medium-light, muted blue. In OKLCH its lightness is 68%, its chroma 0.040 and its hue 235°. Its hue sits on the cool side of the wheel. The nearest named color is Bluey Grey (#89A0B0), ΔE 0.014 away. Black text reads best on it, at 7.36:1.
| Hue family | Blues |
| Lightness | medium-light (68%) |
| Chroma | muted (0.040) |
| Temperature | cool |
| Nearest name | Bluey Grey (#89A0B0) |
| Black text | 7.36:1 |
| White text | 2.85:1 |
Values
| HEX | #819DAE |
| RGB | rgb(129, 157, 174) |
| HSL | hsl(203, 22%, 59%) |
| OKLCH | oklch(68.1% 0.04 234.8) |
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 #819DAE | 2.85:1 | Fails | Lc -59.9 | Large or bold text, headings |
| Black text on #819DAE | 7.36:1 | AAA | Lc 49.4 | Large or bold text, headings |
| #819DAE text on white | 2.85:1 | Fails | Lc 54.6 | Large or bold text, headings |
| #819DAE text on black | 7.36:1 | AAA | Lc -47.2 | 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
#F3F6F7
oklch(97.1% 0.003 219.5)
-
Step 100
100
#E5EBEE
oklch(93.6% 0.008 228.9)
-
Step 200
200
#D1DBE1
oklch(88.6% 0.014 233.8)
-
Step 300
300
#B2C4CF
oklch(81% 0.025 234.5)
-
Step 400
400 (this color)
#819DAE
oklch(68.1% 0.04 234.8)
-
Step 500
500
#6B8FA4
oklch(63.1% 0.051 234.2)
-
Step 600
600
#527990
oklch(55.6% 0.057 235.1)
-
Step 700
700
#43667A
oklch(49.2% 0.051 234.3)
-
Step 800
800
#375363
oklch(42.7% 0.043 234.2)
-
Step 900
900
#304551
oklch(37.8% 0.033 233.9)
-
Step 950
950
#1C282F
oklch(26.9% 0.021 234.2)
#819DAE 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) | #959CAF | 0.027 |
| Deuteranopia (no green cones) | #8F97AE | 0.024 |
| Tritanopia (no blue cones) | #74A2A2 | 0.031 |
| Achromatopsia (no color) | #999999 | 0.040 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #819DAE
#819DAE
oklch(68.1% 0.04 234.8)
- #AD9281
#AD9281
oklch(68% 0.041 54)
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 #819DAE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bluey Grey #89A0B0 ΔE 0.014
- Greyblue #77A1B5 ΔE 0.016
- Bluegrey #85A3B2 ΔE 0.018
- Cool Gray #8D99AE ΔE 0.018
- Cool Grey #95A3A6 ΔE 0.036
- Cool Steel #97A7B3 ΔE 0.042
- Cadet Blue #5F9EA0 ΔE 0.047
- Silver Lake Blue #778DA9 ΔE 0.048
Use #819DAE 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.