#366174
Closest named color: YInMn Blue (#415A77). oklch(46.9% 0.057 228.4), rgb(54, 97, 116).
Aa
White text reads best on this color (6.73:1).
About this color
#366174 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 47%, its chroma 0.057 and its hue 228°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.026 away. White text reads best on it, at 6.73:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (47%) |
| Chroma | muted (0.057) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 3.11:1 |
| White text | 6.73:1 |
Values
| HEX | #366174 |
| RGB | rgb(54, 97, 116) |
| HSL | hsl(198, 36%, 33%) |
| OKLCH | oklch(46.9% 0.057 228.4) |
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 #366174 | 6.73:1 | AA | Lc -88.1 | Fine for body text |
| Black text on #366174 | 3.11:1 | AA large text | Lc 21.0 | Dividers and decoration only |
| #366174 text on white | 6.73:1 | AA | Lc 83.1 | Fine for body text |
| #366174 text on black | 3.11:1 | AA large text | Lc -18.8 | 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
#F3F6F7
oklch(97.1% 0.003 219.5)
-
Step 100
100
#E5EBEE
oklch(93.6% 0.008 228.9)
-
Step 200
200
#CFDBE1
oklch(88.4% 0.015 229)
-
Step 300
300
#AFC5CF
oklch(81% 0.028 226.9)
-
Step 400
400
#85A6B7
oklch(70.6% 0.044 230.5)
-
Step 500
500
#6591A5
oklch(63.2% 0.057 228)
-
Step 600
600
#4B7B90
oklch(55.7% 0.061 227.7)
-
Step 700
700 (this color)
#366174
oklch(46.9% 0.057 228.4)
-
Step 800
800
#325463
oklch(42.6% 0.047 227.9)
-
Step 900
900
#2C4651
oklch(37.8% 0.037 226.5)
-
Step 950
950
#1A292F
oklch(27% 0.023 224.8)
#366174 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) | #575F75 | 0.042 |
| Deuteranopia (no green cones) | #4E5974 | 0.036 |
| Tritanopia (no blue cones) | #126667 | 0.040 |
| Achromatopsia (no color) | #5C5C5C | 0.057 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #366174
#366174
oklch(46.9% 0.057 228.4)
- #75513E
#75513E
oklch(46.9% 0.057 48.7)
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 #366174, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.026
- Slate #516572 ΔE 0.036
- Petrol #005F6A ΔE 0.039
- Denim #3B638C ΔE 0.040
- Dark Aqua #05696B ΔE 0.043
- Light Navy Blue #2E5A88 ΔE 0.045
- Dusty Grape #545775 ΔE 0.047
- Peacock Blue #016795 ΔE 0.055
Use #366174 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.