#00657F
Closest named color: Petrol (#005F6A). oklch(47.1% 0.088 223.4), rgb(0, 101, 127).
Aa
White text reads best on this color (6.62:1).
About this color
#00657F is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 47%, its chroma 0.088 and its hue 223°. Its hue sits on the cool side of the wheel. The nearest named color is Petrol (#005F6A), ΔE 0.036 away. White text reads best on it, at 6.62:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (47%) |
| Chroma | moderately saturated (0.088) |
| Temperature | cool |
| Nearest name | Petrol (#005F6A) |
| Black text | 3.16:1 |
| White text | 6.62:1 |
Values
| HEX | #00657F |
| RGB | rgb(0, 101, 127) |
| HSL | hsl(192, 100%, 25%) |
| OKLCH | oklch(47.1% 0.088 223.4) |
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 #00657F | 6.62:1 | AA | Lc -87.3 | Fine for body text |
| Black text on #00657F | 3.16:1 | AA large text | Lc 21.8 | Dividers and decoration only |
| #00657F text on white | 6.62:1 | AA | Lc 82.2 | Fine for body text |
| #00657F text on black | 3.16:1 | AA large text | Lc -19.7 | 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
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E2ECF0
oklch(93.7% 0.012 223.5)
-
Step 200
200
#C9DDE5
oklch(88.5% 0.024 223.7)
-
Step 300
300
#A4C7D5
oklch(80.9% 0.042 224.1)
-
Step 400
400
#70AAC0
oklch(70.6% 0.068 223.9)
-
Step 500
500
#4695B0
oklch(63.1% 0.087 223.2)
-
Step 600
600
#207F9C
oklch(55.7% 0.095 223.5)
-
Step 700
700 (this color)
#00657F
oklch(47.1% 0.088 223.4)
-
Step 800
800
#12576C
oklch(42.6% 0.073 223.6)
-
Step 900
900
#194858
oklch(37.7% 0.057 224)
-
Step 950
950
#102A33
oklch(26.9% 0.036 223.3)
#00657F 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) | #566280 | 0.068 |
| Deuteranopia (no green cones) | #47587F | 0.060 |
| Tritanopia (no blue cones) | #006D6E | 0.043 |
| Achromatopsia (no color) | #5D5D5D | 0.088 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #00657F
#00657F
oklch(47.1% 0.088 223.4)
- #834930
#834930
oklch(46.9% 0.088 43.5)
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 #00657F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Petrol #005F6A ΔE 0.036
- Peacock Blue #016795 ΔE 0.036
- Dark Aqua #05696B ΔE 0.039
- Denim #3B638C ΔE 0.044
- Light Navy Blue #2E5A88 ΔE 0.045
- YInMn Blue #415A77 ΔE 0.049
- Sea Blue #047495 ΔE 0.052
- Deep Turquoise #017374 ΔE 0.053
Use #00657F 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.