#819CAA
Closest named color: Bluey Grey (#89A0B0). oklch(67.7% 0.037 230.5), rgb(129, 156, 170).
Aa
Black text reads best on this color (7.26:1).
About this color
#819CAA is a medium-light, muted blue. In OKLCH its lightness is 68%, its chroma 0.037 and its hue 231°. Its hue sits on the cool side of the wheel. The nearest named color is Bluey Grey (#89A0B0), ΔE 0.017 away. Black text reads best on it, at 7.26:1.
| Hue family | Blues |
| Lightness | medium-light (68%) |
| Chroma | muted (0.037) |
| Temperature | cool |
| Nearest name | Bluey Grey (#89A0B0) |
| Black text | 7.26:1 |
| White text | 2.88:1 |
Values
| HEX | #819CAA |
| RGB | rgb(129, 156, 170) |
| HSL | hsl(200, 19%, 59%) |
| OKLCH | oklch(67.7% 0.037 230.5) |
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 #819CAA | 2.88:1 | Fails | Lc -60.5 | Content text, not long reading |
| Black text on #819CAA | 7.26:1 | AAA | Lc 48.9 | Large or bold text, headings |
| #819CAA text on white | 2.88:1 | Fails | Lc 55.2 | Large or bold text, headings |
| #819CAA text on black | 7.26:1 | AAA | Lc -46.6 | 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
#E6EBED
oklch(93.7% 0.006 223.5)
-
Step 200
200
#D1DBE0
oklch(88.5% 0.013 228.9)
-
Step 300
300
#B2C4CD
oklch(80.9% 0.023 229.2)
-
Step 400
400 (this color)
#819CAA
oklch(67.7% 0.037 230.5)
-
Step 500
500
#6D8FA1
oklch(63.1% 0.047 231.5)
-
Step 600
600
#54798C
oklch(55.6% 0.051 231.2)
-
Step 700
700
#446677
oklch(49.1% 0.048 230.6)
-
Step 800
800
#385361
oklch(42.6% 0.04 231.5)
-
Step 900
900
#31454F
oklch(37.8% 0.03 230.2)
-
Step 950
950
#1D282E
oklch(26.9% 0.019 232.2)
#819CAA 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) | #959BAB | 0.027 |
| Deuteranopia (no green cones) | #8F96AA | 0.024 |
| Tritanopia (no blue cones) | #75A0A0 | 0.026 |
| Achromatopsia (no color) | #989898 | 0.037 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #819CAA
#819CAA
oklch(67.7% 0.037 230.5)
- #AB9183
#AB9183
oklch(67.6% 0.037 50)
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 #819CAA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bluey Grey #89A0B0 ΔE 0.017
- Cool Gray #8D99AE ΔE 0.019
- Greyblue #77A1B5 ΔE 0.020
- Bluegrey #85A3B2 ΔE 0.021
- Cool Grey #95A3A6 ΔE 0.036
- Cadet Blue #5F9EA0 ΔE 0.044
- Cool Steel #97A7B3 ΔE 0.045
- Silver Lake Blue #778DA9 ΔE 0.046
Use #819CAA 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.