#037391
Closest named color: Sea Blue (#047495). oklch(51.7% 0.097 224.3), rgb(3, 115, 145).
Aa
White text reads best on this color (5.43:1).
About this color
#037391 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 52%, its chroma 0.097 and its hue 224°. Its hue sits on the cool side of the wheel. The nearest named color is Sea Blue (#047495), ΔE 0.007 away. White text reads best on it, at 5.43:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.097) |
| Temperature | cool |
| Nearest name | Sea Blue (#047495) |
| Black text | 3.86:1 |
| White text | 5.43:1 |
Values
| HEX | #037391 |
| RGB | rgb(3, 115, 145) |
| HSL | hsl(193, 96%, 29%) |
| OKLCH | oklch(51.7% 0.097 224.3) |
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 #037391 | 5.43:1 | AA | Lc -81.9 | Fine for body text |
| Black text on #037391 | 3.86:1 | AA large text | Lc 27.5 | Dividers and decoration only |
| #037391 text on white | 5.43:1 | AA | Lc 76.6 | Fine for body text |
| #037391 text on black | 3.86:1 | AA large text | Lc -25.2 | 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 700.
-
Step 50
50
#F1F6F9
oklch(97% 0.007 233.6)
-
Step 100
100
#E1ECF1
oklch(93.6% 0.014 226.6)
-
Step 200
200
#C8DDE6
oklch(88.5% 0.026 225.3)
-
Step 300
300
#A1C8D7
oklch(81% 0.046 223.3)
-
Step 400
400
#6BABC3
oklch(70.7% 0.074 223.9)
-
Step 500
500
#3C96B4
oklch(63.2% 0.095 223.5)
-
Step 600
600
#047FA0
oklch(55.5% 0.104 224.5)
-
Step 700
700 (this color)
#037391
oklch(51.7% 0.097 224.3)
-
Step 800
800
#01586F
oklch(42.8% 0.08 223.5)
-
Step 900
900
#12485A
oklch(37.6% 0.062 224.8)
-
Step 950
950
#0D2A35
oklch(26.9% 0.04 226.2)
#037391 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) | #627093 | 0.074 |
| Deuteranopia (no green cones) | #526591 | 0.065 |
| Tritanopia (no blue cones) | #007C7D | 0.049 |
| Achromatopsia (no color) | #6A6A6A | 0.097 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #037391
#037391
oklch(51.7% 0.097 224.3)
- #955437
#955437
oklch(51.6% 0.096 44.2)
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 #037391, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea Blue #047495 ΔE 0.007
- Ocean Blue #03719C ΔE 0.020
- Ocean #017B92 ΔE 0.024
- Deep Aqua #08787F ΔE 0.037
- Peacock Blue #016795 ΔE 0.039
- Muted Blue #3B719F ΔE 0.040
- Deep Turquoise #017374 ΔE 0.048
- Dull Blue #49759C ΔE 0.049
Use #037391 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.