#1D545B
Closest named color: Deep Teal (#00555A). oklch(41.3% 0.058 206.9), rgb(29, 84, 91).
Aa
White text reads best on this color (8.49:1).
About this color
#1D545B is a dark, muted teal or cyan. In OKLCH its lightness is 41%, its chroma 0.058 and its hue 207°. 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 8.49:1.
| Hue family | Teals and cyans |
| Lightness | dark (41%) |
| Chroma | muted (0.058) |
| Temperature | cool |
| Nearest name | Deep Teal (#00555A) |
| Black text | 2.47:1 |
| White text | 8.49:1 |
Values
| HEX | #1D545B |
| RGB | rgb(29, 84, 91) |
| HSL | hsl(187, 52%, 24%) |
| OKLCH | oklch(41.3% 0.058 206.9) |
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 #1D545B | 8.49:1 | AAA | Lc -93.6 | Preferred for body text |
| Black text on #1D545B | 2.47:1 | Fails | Lc 15.0 | Not readable |
| #1D545B text on white | 8.49:1 | AAA | Lc 89.0 | Fine for body text |
| #1D545B text on black | 2.47:1 | Fails | Lc -13.2 | 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
#E3ECED
oklch(93.7% 0.01 204.9)
-
Step 200
200
#CCDDDF
oklch(88.5% 0.018 205.3)
-
Step 300
300
#A8C7CC
oklch(80.8% 0.034 208.4)
-
Step 400
400
#79ABB2
oklch(70.8% 0.054 206.9)
-
Step 500
500
#53969F
oklch(63.2% 0.069 206.8)
-
Step 600
600
#348089
oklch(55.7% 0.075 206)
-
Step 700
700
#266C75
oklch(49.2% 0.07 207.1)
-
Step 800
800 (this color)
#1D545B
oklch(41.3% 0.058 206.9)
-
Step 900
900
#21484E
oklch(37.6% 0.045 208.6)
-
Step 950
950
#142A2D
oklch(26.8% 0.028 206.9)
#1D545B 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) | #4D515B | 0.056 |
| Deuteranopia (no green cones) | #444A5B | 0.052 |
| Tritanopia (no blue cones) | #005856 | 0.022 |
| Achromatopsia (no color) | #4D4D4D | 0.058 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1D545B
#1D545B
oklch(41.3% 0.058 206.9)
- #673F3A
#673F3A
oklch(41.3% 0.057 27.5)
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 #1D545B, 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 0.024
- Dark Teal #014D4E ΔE 0.035
- Dark Blue Green #005249 ΔE 0.036
- Petrol #005F6A ΔE 0.036
- Charcoal #264653 ΔE 0.044
- Dark Grey Blue #29465B ΔE 0.046
- Dark Green Blue #1F6357 ΔE 0.052
Use #1D545B 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.