#337C95
Closest named color: Cerulean (#457B9D). oklch(55.1% 0.081 223.9), rgb(51, 124, 149).
Aa
White text reads best on this color (4.71:1).
About this color
#337C95 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 55%, its chroma 0.081 and its hue 224°. Its hue sits on the cool side of the wheel. The nearest named color is Cerulean (#457B9D), ΔE 0.022 away. White text reads best on it, at 4.71:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (55%) |
| Chroma | moderately saturated (0.081) |
| Temperature | cool |
| Nearest name | Cerulean (#457B9D) |
| Black text | 4.45:1 |
| White text | 4.71:1 |
Values
| HEX | #337C95 |
| RGB | rgb(51, 124, 149) |
| HSL | hsl(195, 49%, 39%) |
| OKLCH | oklch(55.1% 0.081 223.9) |
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 #337C95 | 4.71:1 | AA | Lc -77.9 | Fine for body text |
| Black text on #337C95 | 4.45:1 | AA large text | Lc 31.6 | Non-text elements, placeholder text |
| #337C95 text on white | 4.71:1 | AA | Lc 72.5 | Content text, not long reading |
| #337C95 text on black | 4.45:1 | AA large text | Lc -29.2 | 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
#E3ECEF
oklch(93.7% 0.01 219.6)
-
Step 200
200
#CCDCE3
oklch(88.5% 0.02 225.7)
-
Step 300
300
#A8C6D2
oklch(80.8% 0.036 224)
-
Step 400
400
#78A9BC
oklch(70.7% 0.059 224)
-
Step 500
500
#5393AB
oklch(63% 0.075 224.4)
-
Step 600
600 (this color)
#337C95
oklch(55.1% 0.081 223.9)
-
Step 700
700
#266A80
oklch(49.1% 0.075 223.1)
-
Step 800
800
#225668
oklch(42.6% 0.062 224)
-
Step 900
900
#214755
oklch(37.6% 0.049 224.6)
-
Step 950
950
#142A32
oklch(27.1% 0.032 223.6)
#337C95 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) | #6E7996 | 0.064 |
| Deuteranopia (no green cones) | #606F95 | 0.057 |
| Tritanopia (no blue cones) | #008484 | 0.046 |
| Achromatopsia (no color) | #737373 | 0.081 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #337C95
#337C95
oklch(55.1% 0.081 223.9)
- #9A624A
#9A624A
oklch(55.2% 0.081 43.9)
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 #337C95, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cerulean #457B9D ΔE 0.022
- Ocean #017B92 ΔE 0.023
- Stormy Blue #507B9C ΔE 0.030
- Dull Blue #49759C ΔE 0.032
- Metallic Blue #4F738E ΔE 0.033
- Sea Blue #047495 ΔE 0.035
- Teal Blue #01889F ΔE 0.036
- Muted Blue #3B719F ΔE 0.040
Use #337C95 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.