#366255
Closest named color: Dark Green Blue (#1F6357). oklch(46% 0.054 172.8), rgb(54, 98, 85).
Aa
White text reads best on this color (6.91:1).
About this color
#366255 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 46%, its chroma 0.054 and its hue 173°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Green Blue (#1F6357), ΔE 0.019 away. White text reads best on it, at 6.91:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (46%) |
| Chroma | muted (0.054) |
| Temperature | cool |
| Nearest name | Dark Green Blue (#1F6357) |
| Black text | 3.03:1 |
| White text | 6.91:1 |
Values
| HEX | #366255 |
| RGB | rgb(54, 98, 85) |
| HSL | hsl(162, 29%, 30%) |
| OKLCH | oklch(46% 0.054 172.8) |
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 #366255 | 6.91:1 | AA | Lc -88.8 | Fine for body text |
| Black text on #366255 | 3.03:1 | AA large text | Lc 20.2 | Dividers and decoration only |
| #366255 text on white | 6.91:1 | AA | Lc 83.8 | Fine for body text |
| #366255 text on black | 3.03:1 | AA large text | Lc -18.1 | 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 700.
-
Step 50
50
#F3F6F5
oklch(97.1% 0.003 174.5)
-
Step 100
100
#E5EBE9
oklch(93.5% 0.007 174.4)
-
Step 200
200
#D0DCD8
oklch(88.4% 0.014 174.1)
-
Step 300
300
#B0C6BF
oklch(80.8% 0.026 174.6)
-
Step 400
400
#87A99E
oklch(70.6% 0.041 173.4)
-
Step 500
500
#689486
oklch(63% 0.053 172.8)
-
Step 600
600
#4E7F70
oklch(55.7% 0.058 172.7)
-
Step 700
700 (this color)
#366255
oklch(46% 0.054 172.8)
-
Step 800
800
#34574C
oklch(42.6% 0.045 172.1)
-
Step 900
900
#2E4840
oklch(37.8% 0.035 173.1)
-
Step 950
950
#1B2A25
oklch(27% 0.022 171.9)
#366255 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) | #5F5D54 | 0.055 |
| Deuteranopia (no green cones) | #585856 | 0.053 |
| Tritanopia (no blue cones) | #27635E | 0.017 |
| Achromatopsia (no color) | #5A5A5A | 0.054 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #366255
#366255
oklch(46% 0.054 172.8)
- #704C5B
#704C5B
oklch(46.1% 0.053 352.7)
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 #366255, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Green Blue #1F6357 ΔE 0.019
- Dark Aqua #05696B ΔE 0.040
- Petrol #005F6A ΔE 0.048
- Pine #2B5D34 ΔE 0.052
- Dark Aquamarine #017371 ΔE 0.058
- Spruce #0A5F38 ΔE 0.059
- Deep Turquoise #017374 ΔE 0.060
- Slate #516572 ΔE 0.060
Use #366255 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.