#15574E
Closest named color: Dark Blue Green (#005249). oklch(41.4% 0.066 181.9), rgb(21, 87, 78).
Aa
White text reads best on this color (8.38:1).
About this color
#15574E is a dark, muted teal or cyan. In OKLCH its lightness is 41%, its chroma 0.066 and its hue 182°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Blue Green (#005249), ΔE 0.021 away. White text reads best on it, at 8.38:1.
| Hue family | Teals and cyans |
| Lightness | dark (41%) |
| Chroma | muted (0.066) |
| Temperature | cool |
| Nearest name | Dark Blue Green (#005249) |
| Black text | 2.50:1 |
| White text | 8.38:1 |
Values
| HEX | #15574E |
| RGB | rgb(21, 87, 78) |
| HSL | hsl(172, 61%, 21%) |
| OKLCH | oklch(41.4% 0.066 181.9) |
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 #15574E | 8.38:1 | AAA | Lc -93.2 | Preferred for body text |
| Black text on #15574E | 2.50:1 | Fails | Lc 15.4 | Dividers and decoration only |
| #15574E text on white | 8.38:1 | AAA | Lc 88.6 | Fine for body text |
| #15574E text on black | 2.50:1 | Fails | Lc -13.6 | 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 800.
-
Step 50
50
#F2F7F6
oklch(97.2% 0.005 183)
-
Step 100
100
#E2ECEA
oklch(93.5% 0.011 182.9)
-
Step 200
200
#CBDEDA
oklch(88.5% 0.021 181.8)
-
Step 300
300
#A6C9C2
oklch(80.8% 0.039 181.8)
-
Step 400
400
#75AEA3
oklch(70.8% 0.062 181)
-
Step 500
500
#4C998D
oklch(63% 0.079 182.3)
-
Step 600
600
#2A8477
oklch(55.7% 0.086 181.6)
-
Step 700
700
#1B6F64
oklch(49% 0.079 182.2)
-
Step 800
800 (this color)
#15574E
oklch(41.4% 0.066 181.9)
-
Step 900
900
#1D4B44
oklch(37.9% 0.052 182)
-
Step 950
950
#122C28
oklch(27.1% 0.033 182.6)
#15574E 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) | #53524E | 0.070 |
| Deuteranopia (no green cones) | #494B4F | 0.065 |
| Tritanopia (no blue cones) | #005954 | 0.011 |
| Achromatopsia (no color) | #4E4E4E | 0.067 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #15574E
#15574E
oklch(41.4% 0.066 181.9)
- #693C49
#693C49
oklch(41.5% 0.065 1.7)
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 #15574E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Blue Green #005249 ΔE 0.021
- Deep Teal #00555A ΔE 0.024
- Dark Slate Gray #2F4F4F ΔE 0.033
- Dark Teal #014D4E ΔE 0.037
- Dark Green Blue #1F6357 ΔE 0.040
- Petrol #005F6A ΔE 0.046
- Spruce #0A5F38 ΔE 0.051
- Pine #2B5D34 ΔE 0.052
Use #15574E 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.