#1B453D
Closest named color: Dark Teal (#014D4E). oklch(35.8% 0.049 179), rgb(27, 69, 61).
Aa
White text reads best on this color (10.68:1).
About this color
#1B453D is a dark, muted teal or cyan. In OKLCH its lightness is 36%, its chroma 0.049 and its hue 179°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Teal (#014D4E), ΔE 0.033 away. White text reads best on it, at 10.68:1.
| Hue family | Teals and cyans |
| Lightness | dark (36%) |
| Chroma | muted (0.049) |
| Temperature | cool |
| Nearest name | Dark Teal (#014D4E) |
| Black text | 1.96:1 |
| White text | 10.68:1 |
Values
| HEX | #1B453D |
| RGB | rgb(27, 69, 61) |
| HSL | hsl(169, 44%, 19%) |
| OKLCH | oklch(35.8% 0.049 179) |
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 #1B453D | 10.68:1 | AAA | Lc -98.6 | Preferred for body text |
| Black text on #1B453D | 1.96:1 | Fails | Lc 9.3 | Not readable |
| #1B453D text on white | 10.68:1 | AAA | Lc 94.6 | Preferred for body text |
| #1B453D text on black | 1.96:1 | Fails | Lc -8.0 | 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
#E3ECEA
oklch(93.6% 0.01 181.4)
-
Step 200
200
#CCDED9
oklch(88.6% 0.02 177.4)
-
Step 300
300
#A8C9C1
oklch(80.9% 0.037 179)
-
Step 400
400
#78ADA1
oklch(70.7% 0.059 178.8)
-
Step 500
500
#52998A
oklch(63.2% 0.076 178.4)
-
Step 600
600
#328374
oklch(55.6% 0.082 178.8)
-
Step 700
700
#236F61
oklch(49.2% 0.077 178.3)
-
Step 800
800
#205A50
oklch(42.7% 0.062 179.9)
-
Step 900
900 (this color)
#1B453D
oklch(35.8% 0.049 179)
-
Step 950
950
#142B27
oklch(26.9% 0.03 181.4)
#1B453D 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) | #42413D | 0.052 |
| Deuteranopia (no green cones) | #3C3C3E | 0.050 |
| Tritanopia (no blue cones) | #034643 | 0.015 |
| Achromatopsia (no color) | #3E3E3E | 0.049 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1B453D
#1B453D
oklch(35.8% 0.049 179)
- #52323C
#52323C
oklch(35.9% 0.049 359.6)
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 #1B453D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Teal #014D4E ΔE 0.033
- Evergreen #05472A ΔE 0.039
- Charcoal #264653 ΔE 0.041
- Dark Blue Green #005249 ΔE 0.042
- Charcoal Grey #3C4142 ΔE 0.045
- Onyx #343A40 ΔE 0.048
- Dark Slate Gray #2F4F4F ΔE 0.048
- Dark Blue Grey #1F3B4D ΔE 0.051
Use #1B453D 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.