#0F435E
Closest named color: Dark Grey Blue (#29465B). oklch(36.4% 0.07 236.6), rgb(15, 67, 94).
Aa
White text reads best on this color (10.58:1).
About this color
#0F435E is a dark, moderately saturated blue. In OKLCH its lightness is 36%, its chroma 0.070 and its hue 237°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.027 away. White text reads best on it, at 10.58:1.
| Hue family | Blues |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.070) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 1.98:1 |
| White text | 10.58:1 |
Values
| HEX | #0F435E |
| RGB | rgb(15, 67, 94) |
| HSL | hsl(201, 72%, 21%) |
| OKLCH | oklch(36.4% 0.07 236.6) |
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 #0F435E | 10.58:1 | AAA | Lc -98.2 | Preferred for body text |
| Black text on #0F435E | 1.98:1 | Fails | Lc 9.7 | Not readable |
| #0F435E text on white | 10.58:1 | AAA | Lc 94.2 | Preferred for body text |
| #0F435E text on black | 1.98:1 | Fails | Lc -8.3 | 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
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E1ECF3
oklch(93.7% 0.015 235.4)
-
Step 200
200
#C8DDEA
oklch(88.6% 0.029 234.9)
-
Step 300
300
#A1C6DF
oklch(80.8% 0.053 237.9)
-
Step 400
400
#6CA9CF
oklch(70.8% 0.084 237)
-
Step 500
500
#3E93C2
oklch(63.2% 0.108 236.3)
-
Step 600
600
#0F7CAE
oklch(55.5% 0.117 236.5)
-
Step 700
700
#006895
oklch(49% 0.107 237)
-
Step 800
800
#07557A
oklch(42.6% 0.091 237.3)
-
Step 900
900 (this color)
#0F435E
oklch(36.4% 0.07 236.6)
-
Step 950
950
#0E2A39
oklch(27.1% 0.044 235)
#0F435E 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) | #36435F | 0.040 |
| Deuteranopia (no green cones) | #2B3B5E | 0.034 |
| Tritanopia (no blue cones) | #004A4C | 0.045 |
| Achromatopsia (no color) | #3F3F3F | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0F435E
#0F435E
oklch(36.4% 0.07 236.6)
- #593315
#593315
oklch(36.2% 0.07 56.3)
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 #0F435E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.027
- Charcoal #264653 ΔE 0.030
- Dark Blue Grey #1F3B4D ΔE 0.034
- Midnight Green #073B4C ΔE 0.038
- Prussian Blue #1D3557 ΔE 0.044
- Marine Blue #01386A ΔE 0.046
- Twilight Blue #0A437A ΔE 0.049
- Dark Teal #014D4E ΔE 0.050
Use #0F435E 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.