#1C5255
Closest named color: Deep Teal (#00555A). oklch(40.5% 0.056 200.3), rgb(28, 82, 85).
Aa
White text reads best on this color (8.79:1).
About this color
#1C5255 is a dark, muted teal or cyan. In OKLCH its lightness is 40%, its chroma 0.056 and its hue 200°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Teal (#00555A), ΔE 0.014 away. White text reads best on it, at 8.79:1.
| Hue family | Teals and cyans |
| Lightness | dark (40%) |
| Chroma | muted (0.056) |
| Temperature | cool |
| Nearest name | Deep Teal (#00555A) |
| Black text | 2.38:1 |
| White text | 8.79:1 |
Values
| HEX | #1C5255 |
| RGB | rgb(28, 82, 85) |
| HSL | hsl(183, 50%, 22%) |
| OKLCH | oklch(40.5% 0.056 200.3) |
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 #1C5255 | 8.79:1 | AAA | Lc -94.4 | Preferred for body text |
| Black text on #1C5255 | 2.38:1 | Fails | Lc 14.1 | Not readable |
| #1C5255 text on white | 8.79:1 | AAA | Lc 89.9 | Fine for body text |
| #1C5255 text on black | 2.38:1 | Fails | Lc -12.4 | 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
#F2F6F6
oklch(97% 0.004 197.1)
-
Step 100
100
#E3ECEC
oklch(93.6% 0.01 197)
-
Step 200
200
#CCDDDE
oklch(88.5% 0.018 201.1)
-
Step 300
300
#A9C7C9
oklch(80.8% 0.032 201.5)
-
Step 400
400
#7AABAE
oklch(70.8% 0.052 200.8)
-
Step 500
500
#55969A
oklch(63.1% 0.067 200.7)
-
Step 600
600
#368084
oklch(55.5% 0.073 200.1)
-
Step 700
700
#286C70
oklch(49% 0.067 200.6)
-
Step 800
800 (this color)
#1C5255
oklch(40.5% 0.056 200.3)
-
Step 900
900
#22494B
oklch(37.8% 0.044 199.9)
-
Step 950
950
#152B2C
oklch(27.1% 0.028 199.4)
#1C5255 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) | #4C4E55 | 0.057 |
| Deuteranopia (no green cones) | #434855 | 0.052 |
| Tritanopia (no blue cones) | #005553 | 0.017 |
| Achromatopsia (no color) | #4A4A4A | 0.056 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1C5255
#1C5255
oklch(40.5% 0.056 200.3)
- #643C3C
#643C3C
oklch(40.4% 0.057 19.8)
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 #1C5255, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Teal #00555A ΔE 0.014
- Dark Slate Gray #2F4F4F ΔE 0.019
- Dark Teal #014D4E ΔE 0.025
- Dark Blue Green #005249 ΔE 0.027
- Charcoal #264653 ΔE 0.039
- Dark Grey Blue #29465B ΔE 0.044
- Petrol #005F6A ΔE 0.046
- Dark Green Blue #1F6357 ΔE 0.056
Use #1C5255 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.