#1D5057
Closest named color: Deep Teal (#00555A). oklch(40% 0.055 207.7), rgb(29, 80, 87).
Aa
White text reads best on this color (8.98:1).
About this color
#1D5057 is a dark, muted teal or cyan. In OKLCH its lightness is 40%, its chroma 0.055 and its hue 208°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Teal (#00555A), ΔE 0.018 away. White text reads best on it, at 8.98:1.
| Hue family | Teals and cyans |
| Lightness | dark (40%) |
| Chroma | muted (0.055) |
| Temperature | cool |
| Nearest name | Deep Teal (#00555A) |
| Black text | 2.33:1 |
| White text | 8.98:1 |
Values
| HEX | #1D5057 |
| RGB | rgb(29, 80, 87) |
| HSL | hsl(187, 50%, 23%) |
| OKLCH | oklch(40% 0.055 207.7) |
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 #1D5057 | 8.98:1 | AAA | Lc -94.8 | Preferred for body text |
| Black text on #1D5057 | 2.33:1 | Fails | Lc 13.5 | Not readable |
| #1D5057 text on white | 8.98:1 | AAA | Lc 90.4 | Preferred for body text |
| #1D5057 text on black | 2.33:1 | Fails | Lc -11.9 | 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
#F1F6F7
oklch(97% 0.005 211)
-
Step 100
100
#E1ECEE
oklch(93.5% 0.012 209.8)
-
Step 200
200
#C9DEE1
oklch(88.6% 0.023 207.1)
-
Step 300
300
#A3C9CE
oklch(81% 0.041 206.2)
-
Step 400
400
#6EACB6
oklch(70.6% 0.065 208.7)
-
Step 500
500
#4198A4
oklch(63.2% 0.084 207.6)
-
Step 600
600
#14828F
oklch(55.6% 0.091 207.7)
-
Step 700
700
#006E79
oklch(49.2% 0.084 206.9)
-
Step 800
800
#0A5963
oklch(42.6% 0.07 208.6)
-
Step 900
900 (this color)
#1D5057
oklch(40% 0.055 207.7)
-
Step 950
950
#0F2B2F
oklch(26.9% 0.034 207.9)
#1D5057 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) | #494D57 | 0.053 |
| Deuteranopia (no green cones) | #404657 | 0.049 |
| Tritanopia (no blue cones) | #005452 | 0.022 |
| Achromatopsia (no color) | #494949 | 0.055 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1D5057
#1D5057
oklch(40% 0.055 207.7)
- #623C37
#623C37
oklch(40% 0.055 27.9)
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 #1D5057, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Teal #00555A ΔE 0.018
- Dark Slate Gray #2F4F4F ΔE 0.020
- Dark Teal #014D4E ΔE 0.025
- Charcoal #264653 ΔE 0.032
- Dark Blue Green #005249 ΔE 0.032
- Dark Grey Blue #29465B ΔE 0.036
- Petrol #005F6A ΔE 0.049
- Charcoal Grey #3C4142 ΔE 0.056
Use #1D5057 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.