#1B4E3F
Closest named color: Dark Blue Green (#005249). oklch(38.5% 0.06 170.6), rgb(27, 78, 63).
Aa
White text reads best on this color (9.51:1).
About this color
#1B4E3F is a dark, muted teal or cyan. In OKLCH its lightness is 38%, its chroma 0.060 and its hue 171°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Blue Green (#005249), ΔE 0.019 away. White text reads best on it, at 9.51:1.
| Hue family | Teals and cyans |
| Lightness | dark (38%) |
| Chroma | muted (0.060) |
| Temperature | cool |
| Nearest name | Dark Blue Green (#005249) |
| Black text | 2.20:1 |
| White text | 9.51:1 |
Values
| HEX | #1B4E3F |
| RGB | rgb(27, 78, 63) |
| HSL | hsl(162, 49%, 21%) |
| OKLCH | oklch(38.5% 0.06 170.6) |
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 #1B4E3F | 9.51:1 | AAA | Lc -96.1 | Preferred for body text |
| Black text on #1B4E3F | 2.20:1 | Fails | Lc 12.2 | Not readable |
| #1B4E3F text on white | 9.51:1 | AAA | Lc 91.8 | Preferred for body text |
| #1B4E3F text on black | 2.20:1 | Fails | Lc -10.6 | 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
#E2EDE8
oklch(93.6% 0.013 167.2)
-
Step 200
200
#CADFD7
oklch(88.6% 0.025 170.9)
-
Step 300
300
#A4CBBC
oklch(81% 0.046 169.7)
-
Step 400
400
#71B09A
oklch(70.8% 0.073 170.1)
-
Step 500
500
#469C81
oklch(63.2% 0.093 170)
-
Step 600
600
#1E866B
oklch(55.6% 0.101 170.7)
-
Step 700
700
#0B7159
oklch(49% 0.093 170.8)
-
Step 800
800
#115C49
oklch(42.6% 0.077 171.1)
-
Step 900
900 (this color)
#1B4E3F
oklch(38.5% 0.06 170.6)
-
Step 950
950
#102C24
oklch(26.8% 0.037 172.3)
#1B4E3F 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) | #4C493E | 0.062 |
| Deuteranopia (no green cones) | #444340 | 0.060 |
| Tritanopia (no blue cones) | #004F4A | 0.020 |
| Achromatopsia (no color) | #464646 | 0.061 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1B4E3F
#1B4E3F
oklch(38.5% 0.06 170.6)
- #5C3648
#5C3648
oklch(38.5% 0.06 350.4)
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 #1B4E3F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Blue Green #005249 ΔE 0.019
- Dark Teal #014D4E ΔE 0.028
- Dark Slate Gray #2F4F4F ΔE 0.036
- Evergreen #05472A ΔE 0.041
- Deep Teal #00555A ΔE 0.043
- Charcoal #264653 ΔE 0.052
- Pine Green #0A481E ΔE 0.053
- Charcoal Grey #3C4142 ΔE 0.057
Use #1B4E3F 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.