#245E5F
Closest named color: Petrol (#005F6A). oklch(44.5% 0.06 196.8), rgb(36, 94, 95).
Aa
White text reads best on this color (7.39:1).
About this color
#245E5F is a dark, muted teal or cyan. In OKLCH its lightness is 44%, its chroma 0.060 and its hue 197°. Its hue sits on the cool side of the wheel. The nearest named color is Petrol (#005F6A), ΔE 0.022 away. White text reads best on it, at 7.39:1.
| Hue family | Teals and cyans |
| Lightness | dark (44%) |
| Chroma | muted (0.060) |
| Temperature | cool |
| Nearest name | Petrol (#005F6A) |
| Black text | 2.84:1 |
| White text | 7.39:1 |
Values
| HEX | #245E5F |
| RGB | rgb(36, 94, 95) |
| HSL | hsl(181, 45%, 26%) |
| OKLCH | oklch(44.5% 0.06 196.8) |
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 #245E5F | 7.39:1 | AAA | Lc -90.3 | Preferred for body text |
| Black text on #245E5F | 2.84:1 | Fails | Lc 18.5 | Dividers and decoration only |
| #245E5F text on white | 7.39:1 | AAA | Lc 85.5 | Fine for body text |
| #245E5F text on black | 2.84:1 | Fails | Lc -16.6 | 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
#F2F6F6
oklch(97% 0.004 197.1)
-
Step 100
100
#E3ECEC
oklch(93.6% 0.01 197)
-
Step 200
200
#CBDDDD
oklch(88.4% 0.019 196.8)
-
Step 300
300
#A7C8C8
oklch(80.9% 0.035 196.5)
-
Step 400
400
#77ACAC
oklch(70.8% 0.056 196)
-
Step 500
500
#509798
oklch(63.1% 0.071 196.7)
-
Step 600
600
#308183
oklch(55.5% 0.077 197.5)
-
Step 700
700
#216D6F
oklch(49.1% 0.072 197.6)
-
Step 800
800 (this color)
#245E5F
oklch(44.5% 0.06 196.8)
-
Step 900
900
#1F494A
oklch(37.6% 0.047 197.4)
-
Step 950
950
#142B2B
oklch(27% 0.029 195.6)
#245E5F 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) | #585A5F | 0.062 |
| Deuteranopia (no green cones) | #4E535F | 0.056 |
| Tritanopia (no blue cones) | #00615E | 0.018 |
| Achromatopsia (no color) | #565656 | 0.060 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #245E5F
#245E5F
oklch(44.5% 0.06 196.8)
- #714648
#714648
oklch(44.4% 0.059 16.7)
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 #245E5F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Petrol #005F6A ΔE 0.022
- Dark Green Blue #1F6357 ΔE 0.024
- Dark Aqua #05696B ΔE 0.034
- Deep Teal #00555A ΔE 0.037
- Dark Slate Gray #2F4F4F ΔE 0.047
- Dark Blue Green #005249 ΔE 0.055
- YInMn Blue #415A77 ΔE 0.057
- Dark Aquamarine #017371 ΔE 0.064
Use #245E5F 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.