#1D504F
Closest named color: Dark Slate Gray (#2F4F4F). oklch(39.7% 0.054 193.4), rgb(29, 80, 79).
Aa
White text reads best on this color (9.08:1).
About this color
#1D504F is a dark, muted teal or cyan. In OKLCH its lightness is 40%, its chroma 0.054 and its hue 193°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.017 away. White text reads best on it, at 9.08:1.
| Hue family | Teals and cyans |
| Lightness | dark (40%) |
| Chroma | muted (0.054) |
| Temperature | cool |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.31:1 |
| White text | 9.08:1 |
Values
| HEX | #1D504F |
| RGB | rgb(29, 80, 79) |
| HSL | hsl(179, 47%, 21%) |
| OKLCH | oklch(39.7% 0.054 193.4) |
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 #1D504F | 9.08:1 | AAA | Lc -95.1 | Preferred for body text |
| Black text on #1D504F | 2.31:1 | Fails | Lc 13.3 | Not readable |
| #1D504F text on white | 9.08:1 | AAA | Lc 90.7 | Preferred for body text |
| #1D504F 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
#F2F7F6
oklch(97.2% 0.005 183)
-
Step 100
100
#E1ECEC
oklch(93.5% 0.012 197)
-
Step 200
200
#C9DEDD
oklch(88.5% 0.022 193.3)
-
Step 300
300
#A3C9C8
oklch(80.8% 0.04 194.4)
-
Step 400
400
#6FAEAC
oklch(70.8% 0.065 193.2)
-
Step 500
500
#439997
oklch(63% 0.082 193.2)
-
Step 600
600
#188482
oklch(55.7% 0.09 192.9)
-
Step 700
700
#026F6E
oklch(49% 0.083 193.7)
-
Step 800
800
#0D5B5A
oklch(42.8% 0.069 193.5)
-
Step 900
900 (this color)
#1D504F
oklch(39.7% 0.054 193.4)
-
Step 950
950
#0F2C2B
oklch(27.1% 0.035 192.2)
#1D504F 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) | #4B4C4F | 0.057 |
| Deuteranopia (no green cones) | #43464F | 0.053 |
| Tritanopia (no blue cones) | #005250 | 0.014 |
| Achromatopsia (no color) | #484848 | 0.054 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1D504F
#1D504F
oklch(39.7% 0.054 193.4)
- #603B3E
#603B3E
oklch(39.7% 0.053 14.4)
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 #1D504F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.017
- Dark Teal #014D4E ΔE 0.019
- Dark Blue Green #005249 ΔE 0.021
- Deep Teal #00555A ΔE 0.022
- Charcoal #264653 ΔE 0.036
- Dark Grey Blue #29465B ΔE 0.045
- Charcoal Grey #3C4142 ΔE 0.054
- Petrol #005F6A ΔE 0.055
Use #1D504F 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.