#1D5B68
Closest named color: Petrol (#005F6A). oklch(43.8% 0.065 214.4), rgb(29, 91, 104).
Aa
White text reads best on this color (7.64:1).
About this color
#1D5B68 is a dark, muted teal or cyan. In OKLCH its lightness is 44%, its chroma 0.065 and its hue 214°. Its hue sits on the cool side of the wheel. The nearest named color is Petrol (#005F6A), ΔE 0.015 away. White text reads best on it, at 7.64:1.
| Hue family | Teals and cyans |
| Lightness | dark (44%) |
| Chroma | muted (0.065) |
| Temperature | cool |
| Nearest name | Petrol (#005F6A) |
| Black text | 2.74:1 |
| White text | 7.64:1 |
Values
| HEX | #1D5B68 |
| RGB | rgb(29, 91, 104) |
| HSL | hsl(190, 56%, 26%) |
| OKLCH | oklch(43.8% 0.065 214.4) |
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 #1D5B68 | 7.64:1 | AAA | Lc -91.1 | Preferred for body text |
| Black text on #1D5B68 | 2.74:1 | Fails | Lc 17.7 | Dividers and decoration only |
| #1D5B68 text on white | 7.64:1 | AAA | Lc 86.3 | Fine for body text |
| #1D5B68 text on black | 2.74:1 | Fails | Lc -15.8 | 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
#E2ECEE
oklch(93.6% 0.011 211)
-
Step 200
200
#CADDE2
oklch(88.5% 0.022 215.3)
-
Step 300
300
#A6C7D0
oklch(80.8% 0.038 216.1)
-
Step 400
400
#74ABB8
oklch(70.8% 0.061 214.1)
-
Step 500
500
#4B96A6
oklch(63.1% 0.078 213.4)
-
Step 600
600
#298092
oklch(55.7% 0.085 214.4)
-
Step 700
700
#1A6C7C
oklch(49.2% 0.078 214.1)
-
Step 800
800 (this color)
#1D5B68
oklch(43.8% 0.065 214.4)
-
Step 900
900
#1C4852
oklch(37.5% 0.051 215)
-
Step 950
950
#122A30
oklch(26.8% 0.032 216)
#1D5B68 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) | #525869 | 0.059 |
| Deuteranopia (no green cones) | #475068 | 0.053 |
| Tritanopia (no blue cones) | #00605F | 0.028 |
| Achromatopsia (no color) | #535353 | 0.065 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1D5B68
#1D5B68
oklch(43.8% 0.065 214.4)
- #71443A
#71443A
oklch(43.7% 0.065 33.3)
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 #1D5B68, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Petrol #005F6A ΔE 0.015
- Deep Teal #00555A ΔE 0.033
- Dark Aqua #05696B ΔE 0.043
- Dark Green Blue #1F6357 ΔE 0.044
- YInMn Blue #415A77 ΔE 0.046
- Dark Slate Gray #2F4F4F ΔE 0.047
- Deep Sea Blue #015482 ΔE 0.055
- Dark Blue Green #005249 ΔE 0.058
Use #1D5B68 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.