#1B5960
Closest named color: Deep Teal (#00555A). oklch(42.8% 0.062 205.8), rgb(27, 89, 96).
Aa
White text reads best on this color (7.94:1).
About this color
#1B5960 is a dark, muted teal or cyan. In OKLCH its lightness is 43%, its chroma 0.062 and its hue 206°. 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 7.94:1.
| Hue family | Teals and cyans |
| Lightness | dark (43%) |
| Chroma | muted (0.062) |
| Temperature | cool |
| Nearest name | Deep Teal (#00555A) |
| Black text | 2.64:1 |
| White text | 7.94:1 |
Values
| HEX | #1B5960 |
| RGB | rgb(27, 89, 96) |
| HSL | hsl(186, 56%, 24%) |
| OKLCH | oklch(42.8% 0.062 205.8) |
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 #1B5960 | 7.94:1 | AAA | Lc -92.0 | Preferred for body text |
| Black text on #1B5960 | 2.64:1 | Fails | Lc 16.7 | Dividers and decoration only |
| #1B5960 text on white | 7.94:1 | AAA | Lc 87.3 | Fine for body text |
| #1B5960 text on black | 2.64:1 | Fails | Lc -14.8 | 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
#F2F6F7
oklch(97% 0.004 214.3)
-
Step 100
100
#E2ECED
oklch(93.6% 0.011 204.1)
-
Step 200
200
#CBDDE0
oklch(88.5% 0.02 208.8)
-
Step 300
300
#A6C8CC
oklch(80.9% 0.037 205.2)
-
Step 400
400
#75ABB2
oklch(70.6% 0.058 206.1)
-
Step 500
500
#4D979F
oklch(63.2% 0.074 204.7)
-
Step 600
600
#2B818A
oklch(55.7% 0.081 205)
-
Step 700
700
#1C6D76
oklch(49.2% 0.075 206)
-
Step 800
800 (this color)
#1B5960
oklch(42.8% 0.062 205.8)
-
Step 900
900
#1D494E
oklch(37.7% 0.049 205.4)
-
Step 950
950
#122B2E
oklch(27.1% 0.031 205.7)
#1B5960 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) | #515560 | 0.061 |
| Deuteranopia (no green cones) | #474E60 | 0.056 |
| Tritanopia (no blue cones) | #005D5B | 0.020 |
| Achromatopsia (no color) | #515151 | 0.063 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1B5960
#1B5960
oklch(42.8% 0.062 205.8)
- #6E423D
#6E423D
oklch(43% 0.062 26.9)
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 #1B5960, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Teal #00555A ΔE 0.021
- Petrol #005F6A ΔE 0.022
- Dark Slate Gray #2F4F4F ΔE 0.036
- Dark Green Blue #1F6357 ΔE 0.041
- Dark Blue Green #005249 ΔE 0.045
- Dark Teal #014D4E ΔE 0.048
- Dark Aqua #05696B ΔE 0.049
- YInMn Blue #415A77 ΔE 0.057
Use #1B5960 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.