#819DBD
Closest named color: Greyblue (#77A1B5). oklch(68.6% 0.057 252), rgb(129, 157, 189).
Aa
Black text reads best on this color (7.49:1).
About this color
#819DBD is a medium-light, muted blue. In OKLCH its lightness is 69%, its chroma 0.057 and its hue 252°. Its hue sits on the cool side of the wheel. The nearest named color is Greyblue (#77A1B5), ΔE 0.022 away. Black text reads best on it, at 7.49:1.
| Hue family | Blues |
| Lightness | medium-light (69%) |
| Chroma | muted (0.057) |
| Temperature | cool |
| Nearest name | Greyblue (#77A1B5) |
| Black text | 7.49:1 |
| White text | 2.80:1 |
Values
| HEX | #819DBD |
| RGB | rgb(129, 157, 189) |
| HSL | hsl(212, 31%, 62%) |
| OKLCH | oklch(68.6% 0.057 252) |
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 #819DBD | 2.80:1 | Fails | Lc -59.2 | Large or bold text, headings |
| Black text on #819DBD | 7.49:1 | AAA | Lc 50.1 | Large or bold text, headings |
| #819DBD text on white | 2.80:1 | Fails | Lc 53.9 | Large or bold text, headings |
| #819DBD text on black | 7.49:1 | AAA | Lc -47.9 | 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
#D0DAE6
oklch(88.4% 0.02 252.9)
-
Step 300
300
#B1C3D8
oklch(81% 0.036 252.3)
-
Step 400
400 (this color)
#819DBD
oklch(68.6% 0.057 252)
-
Step 500
500
#698DB5
oklch(63.2% 0.073 251.6)
-
Step 600
600
#5076A1
oklch(55.6% 0.08 252.3)
-
Step 700
700
#416389
oklch(49.1% 0.073 252.1)
-
Step 800
800
#365170
oklch(42.7% 0.061 252.6)
-
Step 900
900
#2F435A
oklch(37.6% 0.047 252.5)
-
Step 950
950
#1C2735
oklch(26.9% 0.03 254.7)
#819DBD 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) | #919EBF | 0.022 |
| Deuteranopia (no green cones) | #8A98BC | 0.017 |
| Tritanopia (no blue cones) | #6FA4A7 | 0.049 |
| Achromatopsia (no color) | #9A9A9A | 0.057 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #819DBD
#819DBD
oklch(68.6% 0.057 252)
- #B19574
#B19574
oklch(68.7% 0.057 71.3)
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 #819DBD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greyblue #77A1B5 ΔE 0.022
- Cool Gray #8D99AE ΔE 0.025
- Bluey Grey #89A0B0 ΔE 0.025
- Bluegrey #85A3B2 ΔE 0.028
- Cool Steel #97A7B3 ΔE 0.047
- Cool Grey #95A3A6 ΔE 0.049
- Silver Lake Blue #778DA9 ΔE 0.051
- Blue Grey #758DA3 ΔE 0.056
Use #819DBD 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.