#0A435B
Closest named color: Dark Grey Blue (#29465B). oklch(36.1% 0.068 232.3), rgb(10, 67, 91).
Aa
White text reads best on this color (10.67:1).
About this color
#0A435B is a dark, muted blue. In OKLCH its lightness is 36%, its chroma 0.068 and its hue 232°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.029 away. White text reads best on it, at 10.67:1.
| Hue family | Blues |
| Lightness | dark (36%) |
| Chroma | muted (0.068) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 1.96:1 |
| White text | 10.67:1 |
Values
| HEX | #0A435B |
| RGB | rgb(10, 67, 91) |
| HSL | hsl(198, 80%, 20%) |
| OKLCH | oklch(36.1% 0.068 232.3) |
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 #0A435B | 10.67:1 | AAA | Lc -98.4 | Preferred for body text |
| Black text on #0A435B | 1.96:1 | Fails | Lc 9.5 | Not readable |
| #0A435B text on white | 10.67:1 | AAA | Lc 94.4 | Preferred for body text |
| #0A435B text on black | 1.96:1 | Fails | Lc -8.2 | Not readable |
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 900.
-
Step 50
50
#F1F6F9
oklch(97% 0.007 233.6)
-
Step 100
100
#E1ECF2
oklch(93.7% 0.014 231.2)
-
Step 200
200
#C7DDE9
oklch(88.5% 0.029 231.5)
-
Step 300
300
#A0C7DD
oklch(80.9% 0.052 233)
-
Step 400
400
#69AACB
oklch(70.7% 0.082 231.7)
-
Step 500
500
#3A94BE
oklch(63.1% 0.105 232.2)
-
Step 600
600
#007EAA
oklch(55.7% 0.113 231.8)
-
Step 700
700
#006990
oklch(49% 0.101 232.9)
-
Step 800
800
#005676
oklch(42.6% 0.087 232.3)
-
Step 900
900 (this color)
#0A435B
oklch(36.1% 0.068 232.3)
-
Step 950
950
#0D2A38
oklch(27% 0.043 232.5)
#0A435B 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) | #37425C | 0.045 |
| Deuteranopia (no green cones) | #2C3B5B | 0.037 |
| Tritanopia (no blue cones) | #00494B | 0.040 |
| Achromatopsia (no color) | #3E3E3E | 0.069 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0A435B
#0A435B
oklch(36.1% 0.068 232.3)
- #593218
#593218
oklch(36.1% 0.068 52.5)
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 #0A435B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.029
- Charcoal #264653 ΔE 0.029
- Dark Blue Grey #1F3B4D ΔE 0.032
- Midnight Green #073B4C ΔE 0.034
- Prussian Blue #1D3557 ΔE 0.044
- Dark Teal #014D4E ΔE 0.046
- Marine Blue #01386A ΔE 0.049
- Twilight Blue #0A437A ΔE 0.054
Use #0A435B 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.