#1D4F58
Closest named color: Deep Teal (#00555A). oklch(39.8% 0.055 211.3), rgb(29, 79, 88).
Aa
White text reads best on this color (9.08:1).
About this color
#1D4F58 is a dark, muted teal or cyan. In OKLCH its lightness is 40%, its chroma 0.055 and its hue 211°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Teal (#00555A), ΔE 0.021 away. White text reads best on it, at 9.08:1.
| Hue family | Teals and cyans |
| Lightness | dark (40%) |
| Chroma | muted (0.055) |
| Temperature | cool |
| Nearest name | Deep Teal (#00555A) |
| Black text | 2.31:1 |
| White text | 9.08:1 |
Values
| HEX | #1D4F58 |
| RGB | rgb(29, 79, 88) |
| HSL | hsl(189, 50%, 23%) |
| OKLCH | oklch(39.8% 0.055 211.3) |
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 #1D4F58 | 9.08:1 | AAA | Lc -95.1 | Preferred for body text |
| Black text on #1D4F58 | 2.31:1 | Fails | Lc 13.3 | Not readable |
| #1D4F58 text on white | 9.08:1 | AAA | Lc 90.7 | Preferred for body text |
| #1D4F58 text on black | 2.31:1 | Fails | Lc -11.6 | 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 900.
-
Step 50
50
#F1F6F7
oklch(97% 0.005 211)
-
Step 100
100
#E1ECEE
oklch(93.5% 0.012 209.8)
-
Step 200
200
#C9DEE2
oklch(88.6% 0.023 210.4)
-
Step 300
300
#A3C8D0
oklch(80.9% 0.041 212.3)
-
Step 400
400
#6EACB8
oklch(70.7% 0.066 211.1)
-
Step 500
500
#4297A7
oklch(63.1% 0.084 211.8)
-
Step 600
600
#178192
oklch(55.6% 0.091 211.7)
-
Step 700
700
#026D7C
oklch(49.1% 0.085 211.3)
-
Step 800
800
#0C5965
oklch(42.7% 0.07 211.3)
-
Step 900
900 (this color)
#1D4F58
oklch(39.8% 0.055 211.3)
-
Step 950
950
#0F2B30
oklch(27% 0.035 210.9)
#1D4F58 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) | #484C59 | 0.052 |
| Deuteranopia (no green cones) | #3F4658 | 0.046 |
| Tritanopia (no blue cones) | #005352 | 0.024 |
| Achromatopsia (no color) | #484848 | 0.055 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1D4F58
#1D4F58
oklch(39.8% 0.055 211.3)
- #613C35
#613C35
oklch(39.8% 0.054 31.3)
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 #1D4F58, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Teal #00555A ΔE 0.021
- Dark Slate Gray #2F4F4F ΔE 0.022
- Dark Teal #014D4E ΔE 0.025
- Charcoal #264653 ΔE 0.028
- Dark Grey Blue #29465B ΔE 0.032
- Dark Blue Green #005249 ΔE 0.035
- Petrol #005F6A ΔE 0.051
- Charcoal Grey #3C4142 ΔE 0.055
Use #1D4F58 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.