#1B453B
Closest named color: Dark Teal (#014D4E). oklch(35.7% 0.05 175.4), rgb(27, 69, 59).
Aa
White text reads best on this color (10.70:1).
About this color
#1B453B is a dark, muted teal or cyan. In OKLCH its lightness is 36%, its chroma 0.050 and its hue 175°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Teal (#014D4E), ΔE 0.035 away. White text reads best on it, at 10.70:1.
| Hue family | Teals and cyans |
| Lightness | dark (36%) |
| Chroma | muted (0.050) |
| Temperature | cool |
| Nearest name | Dark Teal (#014D4E) |
| Black text | 1.96:1 |
| White text | 10.70:1 |
Values
| HEX | #1B453B |
| RGB | rgb(27, 69, 59) |
| HSL | hsl(166, 44%, 19%) |
| OKLCH | oklch(35.7% 0.05 175.4) |
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 #1B453B | 10.70:1 | AAA | Lc -98.6 | Preferred for body text |
| Black text on #1B453B | 1.96:1 | Fails | Lc 9.2 | Not readable |
| #1B453B text on white | 10.70:1 | AAA | Lc 94.7 | Preferred for body text |
| #1B453B text on black | 1.96:1 | Fails | Lc -7.9 | 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 900.
-
Step 50
50
#F2F7F5
oklch(97.2% 0.006 170.4)
-
Step 100
100
#E3ECE9
oklch(93.5% 0.01 174.3)
-
Step 200
200
#CCDED8
oklch(88.5% 0.021 173.9)
-
Step 300
300
#A8C9BF
oklch(80.9% 0.038 175)
-
Step 400
400
#78AD9F
oklch(70.6% 0.06 176.2)
-
Step 500
500
#529987
oklch(63.1% 0.077 175.3)
-
Step 600
600
#338371
oklch(55.5% 0.083 175.7)
-
Step 700
700
#246F5E
oklch(49.1% 0.078 174.9)
-
Step 800
800
#205A4D
oklch(42.6% 0.064 175.7)
-
Step 900
900 (this color)
#1B453B
oklch(35.7% 0.05 175.4)
-
Step 950
950
#142C26
oklch(27.1% 0.032 175.7)
#1B453B 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) | #43413B | 0.053 |
| Deuteranopia (no green cones) | #3C3C3C | 0.050 |
| Tritanopia (no blue cones) | #054642 | 0.015 |
| Achromatopsia (no color) | #3E3E3E | 0.051 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1B453B
#1B453B
oklch(35.7% 0.05 175.4)
- #51313D
#51313D
oklch(35.6% 0.05 355.8)
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 #1B453B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Teal #014D4E ΔE 0.035
- Evergreen #05472A ΔE 0.036
- Dark Blue Green #005249 ΔE 0.042
- Charcoal #264653 ΔE 0.045
- Charcoal Grey #3C4142 ΔE 0.047
- Onyx #343A40 ΔE 0.050
- Dark Slate Gray #2F4F4F ΔE 0.050
- Pine Green #0A481E ΔE 0.053
Use #1B453B 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.