#064458
Closest named color: Charcoal (#264653). oklch(36.1% 0.066 226.4), rgb(6, 68, 88).
Aa
White text reads best on this color (10.63:1).
About this color
#064458 is a dark, muted teal or cyan. In OKLCH its lightness is 36%, its chroma 0.066 and its hue 226°. Its hue sits on the cool side of the wheel. The nearest named color is Charcoal (#264653), ΔE 0.027 away. White text reads best on it, at 10.63:1.
| Hue family | Teals and cyans |
| Lightness | dark (36%) |
| Chroma | muted (0.066) |
| Temperature | cool |
| Nearest name | Charcoal (#264653) |
| Black text | 1.97:1 |
| White text | 10.63:1 |
Values
| HEX | #064458 |
| RGB | rgb(6, 68, 88) |
| HSL | hsl(195, 87%, 18%) |
| OKLCH | oklch(36.1% 0.066 226.4) |
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 #064458 | 10.63:1 | AAA | Lc -98.3 | Preferred for body text |
| Black text on #064458 | 1.97:1 | Fails | Lc 9.7 | Not readable |
| #064458 text on white | 10.63:1 | AAA | Lc 94.3 | Preferred for body text |
| #064458 text on black | 1.97:1 | Fails | Lc -8.3 | Not readable |
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 900.
-
Step 50
50
#F1F6F9
oklch(97% 0.007 233.6)
-
Step 100
100
#E0ECF1
oklch(93.6% 0.015 224.5)
-
Step 200
200
#C7DDE7
oklch(88.4% 0.027 226.8)
-
Step 300
300
#9FC8DA
oklch(80.9% 0.05 226.5)
-
Step 400
400
#68ABC7
oklch(70.7% 0.079 226.7)
-
Step 500
500
#3696B9
oklch(63.2% 0.102 226.3)
-
Step 600
600
#007FA3
oklch(55.6% 0.107 226.4)
-
Step 700
700
#006B8A
oklch(49.2% 0.095 226.5)
-
Step 800
800
#005771
oklch(42.6% 0.082 226.6)
-
Step 900
900 (this color)
#064458
oklch(36.1% 0.066 226.4)
-
Step 950
950
#0B2A36
oklch(26.8% 0.042 227.3)
#064458 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) | #394359 | 0.049 |
| Deuteranopia (no green cones) | #2F3B58 | 0.043 |
| Tritanopia (no blue cones) | #004A4B | 0.035 |
| Achromatopsia (no color) | #3E3E3E | 0.066 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #064458
#064458
oklch(36.1% 0.066 226.4)
- #5A311D
#5A311D
oklch(36.1% 0.067 45.9)
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 #064458, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal #264653 ΔE 0.027
- Dark Grey Blue #29465B ΔE 0.030
- Dark Blue Grey #1F3B4D ΔE 0.032
- Midnight Green #073B4C ΔE 0.033
- Dark Teal #014D4E ΔE 0.039
- Prussian Blue #1D3557 ΔE 0.049
- Marine Blue #01386A ΔE 0.055
- Deep Teal #00555A ΔE 0.056
Use #064458 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.