#1C504E
Closest named color: Dark Slate Gray (#2F4F4F). oklch(39.6% 0.055 191.7), rgb(28, 80, 78).
Aa
White text reads best on this color (9.10:1).
About this color
#1C504E is a dark, muted teal or cyan. In OKLCH its lightness is 40%, its chroma 0.055 and its hue 192°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.019 away. White text reads best on it, at 9.10:1.
| Hue family | Teals and cyans |
| Lightness | dark (40%) |
| Chroma | muted (0.055) |
| Temperature | cool |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.30:1 |
| White text | 9.10:1 |
Values
| HEX | #1C504E |
| RGB | rgb(28, 80, 78) |
| HSL | hsl(178, 48%, 21%) |
| OKLCH | oklch(39.6% 0.055 191.7) |
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 #1C504E | 9.10:1 | AAA | Lc -95.1 | Preferred for body text |
| Black text on #1C504E | 2.30:1 | Fails | Lc 13.2 | Not readable |
| #1C504E text on white | 9.10:1 | AAA | Lc 90.7 | Preferred for body text |
| #1C504E text on black | 2.30:1 | 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
#F1F7F6
oklch(97.1% 0.006 185.3)
-
Step 100
100
#E1ECEC
oklch(93.5% 0.012 197)
-
Step 200
200
#C9DEDD
oklch(88.5% 0.022 193.3)
-
Step 300
300
#A3CAC7
oklch(81% 0.042 190.6)
-
Step 400
400
#6EAEAB
oklch(70.7% 0.066 192)
-
Step 500
500
#429A96
oklch(63.2% 0.084 191.2)
-
Step 600
600
#158481
oklch(55.6% 0.091 191.9)
-
Step 700
700
#00706D
oklch(49.2% 0.085 191.5)
-
Step 800
800
#0A5B59
oklch(42.7% 0.07 192.2)
-
Step 900
900 (this color)
#1C504E
oklch(39.6% 0.055 191.7)
-
Step 950
950
#0F2C2B
oklch(27.1% 0.035 192.2)
#1C504E 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) | #4B4C4E | 0.057 |
| Deuteranopia (no green cones) | #43464E | 0.054 |
| Tritanopia (no blue cones) | #00524F | 0.014 |
| Achromatopsia (no color) | #484848 | 0.055 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1C504E
#1C504E
oklch(39.6% 0.055 191.7)
- #603A3F
#603A3F
oklch(39.5% 0.054 11.3)
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 #1C504E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.019
- Dark Teal #014D4E ΔE 0.019
- Dark Blue Green #005249 ΔE 0.019
- Deep Teal #00555A ΔE 0.022
- Charcoal #264653 ΔE 0.037
- Dark Grey Blue #29465B ΔE 0.047
- Charcoal Grey #3C4142 ΔE 0.054
- Petrol #005F6A ΔE 0.056
Use #1C504E 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.