#154143
Closest named color: Midnight Green (#073B4C). oklch(34.6% 0.048 199.4), rgb(21, 65, 67).
Aa
White text reads best on this color (11.23:1).
About this color
#154143 is a dark, muted teal or cyan. In OKLCH its lightness is 35%, its chroma 0.048 and its hue 199°. Its hue sits on the cool side of the wheel. The nearest named color is Midnight Green (#073B4C), ΔE 0.032 away. White text reads best on it, at 11.23:1.
| Hue family | Teals and cyans |
| Lightness | dark (35%) |
| Chroma | muted (0.048) |
| Temperature | cool |
| Nearest name | Midnight Green (#073B4C) |
| Black text | 1.86:1 |
| White text | 11.23:1 |
Values
| HEX | #154143 |
| RGB | rgb(21, 65, 67) |
| HSL | hsl(183, 52%, 17%) |
| OKLCH | oklch(34.6% 0.048 199.4) |
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 #154143 | 11.23:1 | AAA | Lc -99.5 | Preferred for body text |
| Black text on #154143 | 1.86:1 | Fails | Lc 8.1 | Not readable |
| #154143 text on white | 11.23:1 | AAA | Lc 95.8 | Preferred for body text |
| #154143 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
#F2F6F7
oklch(97% 0.004 214.3)
-
Step 100
100
#E2ECEC
oklch(93.6% 0.011 197)
-
Step 200
200
#CBDDDE
oklch(88.4% 0.019 200.8)
-
Step 300
300
#A7C8C9
oklch(80.9% 0.035 198.7)
-
Step 400
400
#75ACAE
oklch(70.7% 0.058 198.8)
-
Step 500
500
#4E979A
oklch(63.1% 0.073 199)
-
Step 600
600
#2D8185
oklch(55.5% 0.079 199.6)
-
Step 700
700
#1E6D71
oklch(49.1% 0.074 200)
-
Step 800
800
#1C595C
oklch(42.7% 0.061 199.8)
-
Step 900
900 (this color)
#154143
oklch(34.6% 0.048 199.4)
-
Step 950
950
#132B2C
oklch(27% 0.03 199.1)
#154143 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) | #3C3E43 | 0.048 |
| Deuteranopia (no green cones) | #353943 | 0.044 |
| Tritanopia (no blue cones) | #004341 | 0.014 |
| Achromatopsia (no color) | #3B3B3B | 0.048 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #154143
#154143
oklch(34.6% 0.048 199.4)
- #502F2F
#502F2F
oklch(34.6% 0.049 19.8)
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 #154143, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Green #073B4C ΔE 0.032
- Dark Blue Grey #1F3B4D ΔE 0.032
- Charcoal #264653 ΔE 0.036
- Dark Teal #014D4E ΔE 0.039
- Onyx #343A40 ΔE 0.040
- Charcoal Grey #3C4142 ΔE 0.048
- Dark Grey Blue #29465B ΔE 0.049
- Gunmetal #293241 ΔE 0.052
Use #154143 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.