#37798E
Closest named color: Ocean (#017B92). oklch(54.2% 0.074 221.6), rgb(55, 121, 142).
Aa
White text reads best on this color (4.89:1).
About this color
#37798E is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 54%, its chroma 0.074 and its hue 222°. Its hue sits on the cool side of the wheel. The nearest named color is Ocean (#017B92), ΔE 0.023 away. White text reads best on it, at 4.89:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.074) |
| Temperature | cool |
| Nearest name | Ocean (#017B92) |
| Black text | 4.28:1 |
| White text | 4.89:1 |
Values
| HEX | #37798E |
| RGB | rgb(55, 121, 142) |
| HSL | hsl(194, 44%, 39%) |
| OKLCH | oklch(54.2% 0.074 221.6) |
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 #37798E | 4.89:1 | AA | Lc -79.2 | Fine for body text |
| Black text on #37798E | 4.28:1 | AA large text | Lc 30.3 | Non-text elements, placeholder text |
| #37798E text on white | 4.89:1 | AA | Lc 73.7 | Content text, not long reading |
| #37798E text on black | 4.28:1 | AA large text | Lc -28.0 | 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 600.
-
Step 50
50
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E3EBEE
oklch(93.5% 0.009 222.1)
-
Step 200
200
#CDDCE2
oklch(88.5% 0.018 223.6)
-
Step 300
300
#AAC6D0
oklch(80.9% 0.033 221.4)
-
Step 400
400
#7CA9B8
oklch(70.8% 0.053 220.5)
-
Step 500
500
#5893A7
oklch(63.1% 0.068 221.8)
-
Step 600
600 (this color)
#37798E
oklch(54.2% 0.074 221.6)
-
Step 700
700
#2D697D
oklch(49% 0.069 222.9)
-
Step 800
800
#275665
oklch(42.7% 0.057 221.5)
-
Step 900
900
#254752
oklch(37.7% 0.044 221)
-
Step 950
950
#162A30
oklch(27.1% 0.028 219)
#37798E 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) | #6D768F | 0.061 |
| Deuteranopia (no green cones) | #606D8E | 0.054 |
| Tritanopia (no blue cones) | #008080 | 0.043 |
| Achromatopsia (no color) | #717171 | 0.074 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37798E
#37798E
oklch(54.2% 0.074 221.6)
- #94614D
#94614D
oklch(54.3% 0.073 42.2)
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 #37798E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Ocean #017B92 ΔE 0.023
- Metallic Blue #4F738E ΔE 0.028
- Cerulean #457B9D ΔE 0.028
- Sea Blue #047495 ΔE 0.033
- Dull Blue #49759C ΔE 0.034
- Stormy Blue #507B9C ΔE 0.035
- Deep Aqua #08787F ΔE 0.036
- Muted Blue #3B719F ΔE 0.041
Use #37798E 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.