#21634E
Closest named color: Dark Green Blue (#1F6357). oklch(45.2% 0.075 168.5), rgb(33, 99, 78).
Aa
White text reads best on this color (7.09:1).
About this color
#21634E is a medium-dark, moderately saturated green. In OKLCH its lightness is 45%, its chroma 0.075 and its hue 168°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Green Blue (#1F6357), ΔE 0.014 away. White text reads best on it, at 7.09:1.
| Hue family | Greens |
| Lightness | medium-dark (45%) |
| Chroma | moderately saturated (0.075) |
| Temperature | in between |
| Nearest name | Dark Green Blue (#1F6357) |
| Black text | 2.95:1 |
| White text | 7.09:1 |
Values
| HEX | #21634E |
| RGB | rgb(33, 99, 78) |
| HSL | hsl(161, 50%, 26%) |
| OKLCH | oklch(45.2% 0.075 168.5) |
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 #21634E | 7.09:1 | AAA | Lc -89.3 | Fine for body text |
| Black text on #21634E | 2.95:1 | Fails | Lc 19.7 | Dividers and decoration only |
| #21634E text on white | 7.09:1 | AAA | Lc 84.4 | Fine for body text |
| #21634E text on black | 2.95:1 | Fails | Lc -17.6 | 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
#F2F7F5
oklch(97.2% 0.006 170.4)
-
Step 100
100
#E2EDE8
oklch(93.6% 0.013 167.2)
-
Step 200
200
#CADFD6
oklch(88.5% 0.026 168.2)
-
Step 300
300
#A6CABB
oklch(80.8% 0.044 168)
-
Step 400
400
#74AF99
oklch(70.7% 0.07 168.9)
-
Step 500
500
#4B9B7F
oklch(63.1% 0.09 168.1)
-
Step 600
600
#288569
oklch(55.5% 0.097 168.8)
-
Step 700
700
#187157
oklch(49.1% 0.091 168.3)
-
Step 800
800 (this color)
#21634E
oklch(45.2% 0.075 168.5)
-
Step 900
900
#1C4C3C
oklch(37.8% 0.059 168.3)
-
Step 950
950
#122C23
oklch(26.9% 0.037 168.7)
#21634E 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) | #605C4D | 0.076 |
| Deuteranopia (no green cones) | #57554F | 0.074 |
| Tritanopia (no blue cones) | #00645D | 0.025 |
| Achromatopsia (no color) | #585858 | 0.076 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #21634E
#21634E
oklch(45.2% 0.075 168.5)
- #74445D
#74445D
oklch(45.2% 0.074 348)
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 #21634E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Green Blue #1F6357 ΔE 0.014
- Pine #2B5D34 ΔE 0.036
- Spruce #0A5F38 ΔE 0.038
- Dark Aqua #05696B ΔE 0.044
- Petrol #005F6A ΔE 0.052
- Deep Teal #00555A ΔE 0.060
- Dark Blue Green #005249 ΔE 0.061
- Dark Aquamarine #017371 ΔE 0.062
Use #21634E 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.