#1B6063
Closest named color: Petrol (#005F6A). oklch(44.9% 0.066 199.3), rgb(27, 96, 99).
Aa
White text reads best on this color (7.24:1).
About this color
#1B6063 is a dark, muted teal or cyan. In OKLCH its lightness is 45%, its chroma 0.066 and its hue 199°. Its hue sits on the cool side of the wheel. The nearest named color is Petrol (#005F6A), ΔE 0.016 away. White text reads best on it, at 7.24:1.
| Hue family | Teals and cyans |
| Lightness | dark (45%) |
| Chroma | muted (0.066) |
| Temperature | cool |
| Nearest name | Petrol (#005F6A) |
| Black text | 2.89:1 |
| White text | 7.24:1 |
Values
| HEX | #1B6063 |
| RGB | rgb(27, 96, 99) |
| HSL | hsl(183, 57%, 25%) |
| OKLCH | oklch(44.9% 0.066 199.3) |
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 #1B6063 | 7.24:1 | AAA | Lc -89.8 | Fine for body text |
| Black text on #1B6063 | 2.89:1 | Fails | Lc 19.2 | Dividers and decoration only |
| #1B6063 text on white | 7.24:1 | AAA | Lc 84.9 | Fine for body text |
| #1B6063 text on black | 2.89:1 | Fails | Lc -17.1 | Dividers and decoration only |
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
#CADEDE
oklch(88.6% 0.021 196.8)
-
Step 300
300
#A4C9CA
oklch(80.9% 0.039 198.4)
-
Step 400
400
#71ADAF
oklch(70.7% 0.062 198.5)
-
Step 500
500
#46989C
oklch(63.1% 0.08 199.6)
-
Step 600
600
#1F8287
oklch(55.5% 0.086 200.1)
-
Step 700
700
#0E6E72
oklch(49.1% 0.08 199.5)
-
Step 800
800 (this color)
#1B6063
oklch(44.9% 0.066 199.3)
-
Step 900
900
#194A4C
oklch(37.7% 0.052 199)
-
Step 950
950
#102B2D
oklch(26.9% 0.033 201.9)
#1B6063 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) | #595B63 | 0.069 |
| Deuteranopia (no green cones) | #4E5463 | 0.062 |
| Tritanopia (no blue cones) | #006461 | 0.017 |
| Achromatopsia (no color) | #575757 | 0.067 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1B6063
#1B6063
oklch(44.9% 0.066 199.3)
- #764546
#764546
oklch(44.9% 0.068 18.8)
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 #1B6063, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Petrol #005F6A ΔE 0.016
- Dark Green Blue #1F6357 ΔE 0.025
- Dark Aqua #05696B ΔE 0.027
- Deep Teal #00555A ΔE 0.040
- Dark Slate Gray #2F4F4F ΔE 0.054
- YInMn Blue #415A77 ΔE 0.057
- Dark Aquamarine #017371 ΔE 0.058
- Deep Turquoise #017374 ΔE 0.058
Use #1B6063 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.