#235F78
Closest named color: Petrol (#005F6A). oklch(45.8% 0.073 229.1), rgb(35, 95, 120).
Aa
White text reads best on this color (7.04:1).
About this color
#235F78 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 46%, its chroma 0.073 and its hue 229°. Its hue sits on the cool side of the wheel. The nearest named color is Petrol (#005F6A), ΔE 0.030 away. White text reads best on it, at 7.04:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.073) |
| Temperature | cool |
| Nearest name | Petrol (#005F6A) |
| Black text | 2.97:1 |
| White text | 7.04:1 |
Values
| HEX | #235F78 |
| RGB | rgb(35, 95, 120) |
| HSL | hsl(198, 55%, 30%) |
| OKLCH | oklch(45.8% 0.073 229.1) |
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 #235F78 | 7.04:1 | AAA | Lc -89.1 | Fine for body text |
| Black text on #235F78 | 2.97:1 | Fails | Lc 19.8 | Dividers and decoration only |
| #235F78 text on white | 7.04:1 | AAA | Lc 84.2 | Fine for body text |
| #235F78 text on black | 2.97:1 | Fails | Lc -17.8 | 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 800.
-
Step 50
50
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E2ECF1
oklch(93.7% 0.013 228.9)
-
Step 200
200
#CADDE6
oklch(88.6% 0.024 227.8)
-
Step 300
300
#A5C7D7
oklch(81% 0.043 228)
-
Step 400
400
#73A9C3
oklch(70.7% 0.068 229.7)
-
Step 500
500
#4A94B4
oklch(63.2% 0.088 228.7)
-
Step 600
600
#287DA0
oklch(55.5% 0.095 229.9)
-
Step 700
700
#196A89
oklch(49.2% 0.088 229.2)
-
Step 800
800 (this color)
#235F78
oklch(45.8% 0.073 229.1)
-
Step 900
900
#1C475A
oklch(37.7% 0.057 230)
-
Step 950
950
#122A35
oklch(27.1% 0.036 229.8)
#235F78 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) | #525D79 | 0.052 |
| Deuteranopia (no green cones) | #465578 | 0.045 |
| Tritanopia (no blue cones) | #006667 | 0.044 |
| Achromatopsia (no color) | #595959 | 0.073 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #235F78
#235F78
oklch(45.8% 0.073 229.1)
- #784B31
#784B31
oklch(45.8% 0.073 50.2)
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 #235F78, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Petrol #005F6A ΔE 0.030
- YInMn Blue #415A77 ΔE 0.031
- Light Navy Blue #2E5A88 ΔE 0.035
- Denim #3B638C ΔE 0.042
- Dark Aqua #05696B ΔE 0.045
- Deep Sea Blue #015482 ΔE 0.047
- Peacock Blue #016795 ΔE 0.047
- Denim Blue #3B5B92 ΔE 0.054
Use #235F78 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.