#03B397
Closest named color: Greeny Blue (#42B395). oklch(68.5% 0.128 176.1), rgb(3, 179, 151).
Aa
Black text reads best on this color (7.89:1).
About this color
#03B397 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 69%, its chroma 0.128 and its hue 176°. Its hue sits on the cool side of the wheel. The nearest named color is Greeny Blue (#42B395), ΔE 0.020 away. Black text reads best on it, at 7.89:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (69%) |
| Chroma | moderately saturated (0.128) |
| Temperature | cool |
| Nearest name | Greeny Blue (#42B395) |
| Black text | 7.89:1 |
| White text | 2.65:1 |
Values
| HEX | #03B397 |
| RGB | rgb(3, 179, 151) |
| HSL | hsl(170, 97%, 36%) |
| OKLCH | oklch(68.5% 0.128 176.1) |
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 #03B397 | 2.65:1 | Fails | Lc -56.2 | Large or bold text, headings |
| Black text on #03B397 | 7.89:1 | AAA | Lc 52.9 | Large or bold text, headings |
| #03B397 text on white | 2.65:1 | Fails | Lc 51.1 | Large or bold text, headings |
| #03B397 text on black | 7.89:1 | AAA | Lc -50.8 | Large or bold text, headings |
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 400.
-
Step 50
50
#EEF8F5
oklch(97.1% 0.011 176.3)
-
Step 100
100
#DBEFE9
oklch(93.6% 0.023 175.9)
-
Step 200
200
#BBE3D8
oklch(88.4% 0.044 176.7)
-
Step 300
300
#87D2BF
oklch(80.9% 0.08 176.4)
-
Step 400
400 (this color)
#03B397
oklch(68.5% 0.128 176.1)
-
Step 500
500
#00A087
oklch(63.1% 0.118 176.3)
-
Step 600
600
#008771
oklch(55.7% 0.104 175.8)
-
Step 700
700
#00715F
oklch(49% 0.091 176.5)
-
Step 800
800
#005D4D
oklch(42.7% 0.08 175.6)
-
Step 900
900
#004D40
oklch(37.6% 0.07 176.4)
-
Step 950
950
#002E25
oklch(26.9% 0.05 175.6)
#03B397 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) | #ACA796 | 0.134 |
| Deuteranopia (no green cones) | #999999 | 0.128 |
| Tritanopia (no blue cones) | #00B6AB | 0.028 |
| Achromatopsia (no color) | #9F9F9F | 0.129 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #03B397
#03B397
oklch(68.5% 0.128 176.1)
- #D7769C
#D7769C
oklch(68.5% 0.128 356.1)
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 #03B397, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greeny Blue #42B395 ΔE 0.020
- Light Sea Green #20B2AA ΔE 0.031
- Topaz #13BBAF ΔE 0.037
- Bluey Green #2BB179 ΔE 0.040
- Dark Seafoam #1FB57A ΔE 0.043
- Dark Seafoam Green #3EAF76 ΔE 0.043
- Green Blue #01C08D ΔE 0.045
- Green Teal #0CB577 ΔE 0.047
Use #03B397 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.