#366458
Closest named color: Dark Green Blue (#1F6357). oklch(46.6% 0.055 175), rgb(54, 100, 88).
Aa
White text reads best on this color (6.72:1).
About this color
#366458 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 47%, its chroma 0.055 and its hue 175°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Green Blue (#1F6357), ΔE 0.020 away. White text reads best on it, at 6.72:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (47%) |
| Chroma | muted (0.055) |
| Temperature | cool |
| Nearest name | Dark Green Blue (#1F6357) |
| Black text | 3.12:1 |
| White text | 6.72:1 |
Values
| HEX | #366458 |
| RGB | rgb(54, 100, 88) |
| HSL | hsl(164, 30%, 30%) |
| OKLCH | oklch(46.6% 0.055 175) |
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 #366458 | 6.72:1 | AA | Lc -88.1 | Fine for body text |
| Black text on #366458 | 3.12:1 | AA large text | Lc 21.0 | Dividers and decoration only |
| #366458 text on white | 6.72:1 | AA | Lc 83.1 | Fine for body text |
| #366458 text on black | 3.12:1 | AA large text | Lc -18.9 | 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
#E5ECE9
oklch(93.7% 0.008 168.7)
-
Step 200
200
#D0DCD8
oklch(88.4% 0.014 174.1)
-
Step 300
300
#B0C7BF
oklch(81% 0.027 172.7)
-
Step 400
400
#86AA9F
oklch(70.8% 0.042 174.4)
-
Step 500
500
#669588
oklch(63.2% 0.055 175.3)
-
Step 600
600
#4C7F71
oklch(55.6% 0.06 174.6)
-
Step 700
700 (this color)
#366458
oklch(46.6% 0.055 175)
-
Step 800
800
#33574D
oklch(42.6% 0.045 174.4)
-
Step 900
900
#2D4840
oklch(37.7% 0.036 173.7)
-
Step 950
950
#1B2A26
oklch(27% 0.022 176.2)
#366458 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) | #615F57 | 0.057 |
| Deuteranopia (no green cones) | #595959 | 0.055 |
| Tritanopia (no blue cones) | #266560 | 0.017 |
| Achromatopsia (no color) | #5C5C5C | 0.055 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #366458
#366458
oklch(46.6% 0.055 175)
- #734D5B
#734D5B
oklch(46.7% 0.055 355.7)
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 #366458, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Green Blue #1F6357 ΔE 0.020
- Dark Aqua #05696B ΔE 0.036
- Petrol #005F6A ΔE 0.048
- Dark Aquamarine #017371 ΔE 0.052
- Deep Turquoise #017374 ΔE 0.054
- Slate #516572 ΔE 0.057
- Pine #2B5D34 ΔE 0.057
- Spruce #0A5F38 ΔE 0.063
Use #366458 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.