#0B423F
Closest named color: Dark Teal (#014D4E). oklch(34.4% 0.054 189.4), rgb(11, 66, 63).
Aa
White text reads best on this color (11.25:1).
About this color
#0B423F is a dark, muted teal or cyan. In OKLCH its lightness is 34%, its chroma 0.054 and its hue 189°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Teal (#014D4E), ΔE 0.039 away. White text reads best on it, at 11.25:1.
| Hue family | Teals and cyans |
| Lightness | dark (34%) |
| Chroma | muted (0.054) |
| Temperature | cool |
| Nearest name | Dark Teal (#014D4E) |
| Black text | 1.86:1 |
| White text | 11.25:1 |
Values
| HEX | #0B423F |
| RGB | rgb(11, 66, 63) |
| HSL | hsl(177, 71%, 15%) |
| OKLCH | oklch(34.4% 0.054 189.4) |
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 #0B423F | 11.25:1 | AAA | Lc -99.5 | Preferred for body text |
| Black text on #0B423F | 1.86:1 | Fails | Lc 8.2 | Not readable |
| #0B423F text on white | 11.25:1 | AAA | Lc 95.7 | Preferred for body text |
| #0B423F text on black | 1.86:1 | Fails | Lc 0.0 | 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
#F2F7F6
oklch(97.2% 0.005 183)
-
Step 100
100
#E2ECEB
oklch(93.5% 0.011 189.8)
-
Step 200
200
#C9DEDC
oklch(88.4% 0.023 189.8)
-
Step 300
300
#A3CAC6
oklch(81% 0.042 188.7)
-
Step 400
400
#6FAEA9
oklch(70.7% 0.065 189.4)
-
Step 500
500
#439A94
oklch(63.2% 0.084 189.1)
-
Step 600
600
#18847E
oklch(55.6% 0.091 189)
-
Step 700
700
#03706B
oklch(49.2% 0.084 189.4)
-
Step 800
800
#0D5B57
oklch(42.7% 0.07 189.4)
-
Step 900
900 (this color)
#0B423F
oklch(34.4% 0.054 189.4)
-
Step 950
950
#0F2C2A
oklch(27% 0.035 189.2)
#0B423F 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) | #3E3E3F | 0.058 |
| Deuteranopia (no green cones) | #36383F | 0.055 |
| Tritanopia (no blue cones) | #004441 | 0.007 |
| Achromatopsia (no color) | #3B3B3B | 0.055 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0B423F
#0B423F
oklch(34.4% 0.054 189.4)
- #512D33
#512D33
oklch(34.5% 0.054 9.5)
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 #0B423F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Teal #014D4E ΔE 0.039
- Midnight Green #073B4C ΔE 0.039
- Dark Blue Grey #1F3B4D ΔE 0.043
- Evergreen #05472A ΔE 0.045
- Charcoal #264653 ΔE 0.045
- Onyx #343A40 ΔE 0.049
- Dark Blue Green #005249 ΔE 0.052
- Charcoal Grey #3C4142 ΔE 0.055
Use #0B423F 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.