#37798D
Closest named color: Ocean (#017B92). oklch(54.2% 0.073 220.6), rgb(55, 121, 141).
Aa
White text reads best on this color (4.90:1).
About this color
#37798D is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 54%, its chroma 0.073 and its hue 221°. 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 4.90:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.073) |
| Temperature | cool |
| Nearest name | Ocean (#017B92) |
| Black text | 4.28:1 |
| White text | 4.90:1 |
Values
| HEX | #37798D |
| RGB | rgb(55, 121, 141) |
| HSL | hsl(194, 44%, 38%) |
| OKLCH | oklch(54.2% 0.073 220.6) |
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 #37798D | 4.90:1 | AA | Lc -79.2 | Fine for body text |
| Black text on #37798D | 4.28:1 | AA large text | Lc 30.3 | Non-text elements, placeholder text |
| #37798D text on white | 4.90:1 | AA | Lc 73.8 | Content text, not long reading |
| #37798D text on black | 4.28:1 | AA large text | Lc -27.9 | 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 600.
-
Step 50
50
#F2F6F7
oklch(97% 0.004 214.3)
-
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
#5893A6
oklch(63% 0.068 220.6)
-
Step 600
600 (this color)
#37798D
oklch(54.2% 0.073 220.6)
-
Step 700
700
#2D6A7C
oklch(49.2% 0.068 220.2)
-
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)
#37798D 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) | #6D768E | 0.061 |
| Deuteranopia (no green cones) | #606D8D | 0.054 |
| Tritanopia (no blue cones) | #00807F | 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°).
- #37798D
#37798D
oklch(54.2% 0.073 220.6)
- #94604E
#94604E
oklch(54.1% 0.074 39.9)
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 #37798D, 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 0.030
- Sea Blue #047495 ΔE 0.034
- Dull Blue #49759C ΔE 0.035
- Deep Aqua #08787F ΔE 0.035
- Stormy Blue #507B9C ΔE 0.036
- Teal #008080 ΔE 0.042
Use #37798D 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.