#154B43
Closest named color: Dark Teal (#014D4E). oklch(37.5% 0.057 181.4), rgb(21, 75, 67).
Aa
White text reads best on this color (9.90:1).
About this color
#154B43 is a dark, muted teal or cyan. In OKLCH its lightness is 38%, its chroma 0.057 and its hue 181°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Teal (#014D4E), ΔE 0.018 away. White text reads best on it, at 9.90:1.
| Hue family | Teals and cyans |
| Lightness | dark (38%) |
| Chroma | muted (0.057) |
| Temperature | cool |
| Nearest name | Dark Teal (#014D4E) |
| Black text | 2.11:1 |
| White text | 9.90:1 |
Values
| HEX | #154B43 |
| RGB | rgb(21, 75, 67) |
| HSL | hsl(171, 56%, 19%) |
| OKLCH | oklch(37.5% 0.057 181.4) |
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 #154B43 | 9.90:1 | AAA | Lc -96.9 | Preferred for body text |
| Black text on #154B43 | 2.11:1 | Fails | Lc 11.2 | Not readable |
| #154B43 text on white | 9.90:1 | AAA | Lc 92.7 | Preferred for body text |
| #154B43 text on black | 2.11:1 | Fails | Lc -9.7 | 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
#F1F7F6
oklch(97.1% 0.006 185.3)
-
Step 100
100
#E1EDEA
oklch(93.6% 0.013 179.5)
-
Step 200
200
#C9DFDA
oklch(88.6% 0.024 180.6)
-
Step 300
300
#A3CAC2
oklch(80.9% 0.043 181.3)
-
Step 400
400
#6EAFA3
oklch(70.7% 0.069 181.2)
-
Step 500
500
#429B8D
oklch(63.2% 0.088 181.5)
-
Step 600
600
#148577
oklch(55.5% 0.095 181.7)
-
Step 700
700
#007164
oklch(49.2% 0.089 181.2)
-
Step 800
800
#0A5C51
oklch(42.7% 0.074 180.7)
-
Step 900
900 (this color)
#154B43
oklch(37.5% 0.057 181.4)
-
Step 950
950
#0F2C27
oklch(26.9% 0.036 180.5)
#154B43 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) | #474643 | 0.061 |
| Deuteranopia (no green cones) | #404144 | 0.058 |
| Tritanopia (no blue cones) | #004C49 | 0.012 |
| Achromatopsia (no color) | #434343 | 0.058 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #154B43
#154B43
oklch(37.5% 0.057 181.4)
- #5A343F
#5A343F
oklch(37.5% 0.057 1.5)
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 #154B43, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Teal #014D4E ΔE 0.018
- Dark Blue Green #005249 ΔE 0.022
- Dark Slate Gray #2F4F4F ΔE 0.036
- Charcoal #264653 ΔE 0.041
- Deep Teal #00555A ΔE 0.042
- Evergreen #05472A ΔE 0.043
- Charcoal Grey #3C4142 ΔE 0.052
- Dark Grey Blue #29465B ΔE 0.054
Use #154B43 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.