#297E8A
Closest named color: Ocean (#017B92). oklch(54.8% 0.081 208.5), rgb(41, 126, 138).
Aa
White text reads best on this color (4.72:1).
About this color
#297E8A is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 55%, its chroma 0.081 and its hue 208°. 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 4.72:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (55%) |
| Chroma | moderately saturated (0.081) |
| Temperature | cool |
| Nearest name | Ocean (#017B92) |
| Black text | 4.44:1 |
| White text | 4.72:1 |
Values
| HEX | #297E8A |
| RGB | rgb(41, 126, 138) |
| HSL | hsl(187, 54%, 35%) |
| OKLCH | oklch(54.8% 0.081 208.5) |
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 #297E8A | 4.72:1 | AA | Lc -78.0 | Fine for body text |
| Black text on #297E8A | 4.44:1 | AA large text | Lc 31.6 | Non-text elements, placeholder text |
| #297E8A text on white | 4.72:1 | AA | Lc 72.5 | Content text, not long reading |
| #297E8A text on black | 4.44:1 | 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
#F2F6F7
oklch(97% 0.004 214.3)
-
Step 100
100
#E2ECED
oklch(93.6% 0.011 204.1)
-
Step 200
200
#CBDDE0
oklch(88.5% 0.02 208.8)
-
Step 300
300
#A6C8CD
oklch(81% 0.037 207.3)
-
Step 400
400
#75ABB4
oklch(70.7% 0.058 209)
-
Step 500
500
#4D96A1
oklch(63% 0.075 208.3)
-
Step 600
600 (this color)
#297E8A
oklch(54.8% 0.081 208.5)
-
Step 700
700
#1D6C77
oklch(49% 0.075 208.6)
-
Step 800
800
#1B5861
oklch(42.6% 0.062 209)
-
Step 900
900
#1E494F
oklch(37.8% 0.048 207.6)
-
Step 950
950
#132B2E
oklch(27.1% 0.03 206.1)
#297E8A 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) | #73798B | 0.078 |
| Deuteranopia (no green cones) | #656F8A | 0.071 |
| Tritanopia (no blue cones) | #008482 | 0.028 |
| Achromatopsia (no color) | #737373 | 0.081 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #297E8A
#297E8A
oklch(54.8% 0.081 208.5)
- #9B5E56
#9B5E56
oklch(54.8% 0.082 28)
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 #297E8A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Ocean #017B92 ΔE 0.023
- Teal #008080 ΔE 0.024
- Deep Aqua #08787F ΔE 0.029
- Bluegreen #017A79 ΔE 0.034
- Teal Blue #01889F ΔE 0.037
- Dark Cyan #008B8B ΔE 0.039
- Cerulean #457B9D ΔE 0.042
- Sea Blue #047495 ΔE 0.043
Use #297E8A 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.