#0B454D
Closest named color: Charcoal (#264653). oklch(35.9% 0.057 209), rgb(11, 69, 77).
Aa
White text reads best on this color (10.64:1).
About this color
#0B454D is a dark, muted teal or cyan. In OKLCH its lightness is 36%, its chroma 0.057 and its hue 209°. Its hue sits on the cool side of the wheel. The nearest named color is Charcoal (#264653), ΔE 0.026 away. White text reads best on it, at 10.64:1.
| Hue family | Teals and cyans |
| Lightness | dark (36%) |
| Chroma | muted (0.057) |
| Temperature | cool |
| Nearest name | Charcoal (#264653) |
| Black text | 1.97:1 |
| White text | 10.64:1 |
Values
| HEX | #0B454D |
| RGB | rgb(11, 69, 77) |
| HSL | hsl(187, 75%, 17%) |
| OKLCH | oklch(35.9% 0.057 209) |
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 #0B454D | 10.64:1 | AAA | Lc -98.3 | Preferred for body text |
| Black text on #0B454D | 1.97:1 | Fails | Lc 9.5 | Not readable |
| #0B454D text on white | 10.64:1 | AAA | Lc 94.4 | Preferred for body text |
| #0B454D text on black | 1.97:1 | 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
#F1F7F7
oklch(97.2% 0.006 197.1)
-
Step 100
100
#E1ECEE
oklch(93.5% 0.012 209.8)
-
Step 200
200
#C8DEE2
oklch(88.5% 0.024 209.8)
-
Step 300
300
#A1C9CF
oklch(80.9% 0.043 207.6)
-
Step 400
400
#6BADB8
oklch(70.8% 0.069 209.2)
-
Step 500
500
#3C98A6
oklch(63.1% 0.088 209.1)
-
Step 600
600
#038291
oklch(55.6% 0.095 209)
-
Step 700
700
#006D7A
oklch(49% 0.084 209.1)
-
Step 800
800
#015A64
oklch(42.8% 0.073 207.9)
-
Step 900
900 (this color)
#0B454D
oklch(35.9% 0.057 209)
-
Step 950
950
#0D2B30
oklch(26.9% 0.036 210.1)
#0B454D 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) | #3E424E | 0.055 |
| Deuteranopia (no green cones) | #353C4D | 0.049 |
| Tritanopia (no blue cones) | #004947 | 0.020 |
| Achromatopsia (no color) | #3E3E3E | 0.057 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0B454D
#0B454D
oklch(35.9% 0.057 209)
- #57312B
#57312B
oklch(35.9% 0.057 29.7)
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 #0B454D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal #264653 ΔE 0.026
- Dark Teal #014D4E ΔE 0.027
- Midnight Green #073B4C ΔE 0.035
- Dark Blue Grey #1F3B4D ΔE 0.035
- Dark Grey Blue #29465B ΔE 0.037
- Dark Blue Green #005249 ΔE 0.047
- Dark Slate Gray #2F4F4F ΔE 0.049
- Onyx #343A40 ΔE 0.050
Use #0B454D 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.