#000618
Closest named color: Midnight (#03012D). oklch(12.7% 0.045 257.1), rgb(0, 6, 24).
Aa
White text reads best on this color (20.20:1).
About this color
#000618 is a very dark, muted blue. In OKLCH its lightness is 13%, its chroma 0.045 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Midnight (#03012D), ΔE 0.048 away. White text reads best on it, at 20.20:1.
| Hue family | Blues |
| Lightness | very dark (13%) |
| Chroma | muted (0.045) |
| Temperature | cool |
| Nearest name | Midnight (#03012D) |
| Black text | 1.03:1 |
| White text | 20.20:1 |
Values
| HEX | #000618 |
| RGB | rgb(0, 6, 24) |
| HSL | hsl(225, 100%, 5%) |
| OKLCH | oklch(12.7% 0.045 257.1) |
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 #000618 | 20.20:1 | AAA | Lc -107.8 | Preferred for body text |
| Black text on #000618 | 1.03:1 | Fails | Lc 0.0 | Not readable |
| #000618 text on white | 20.20:1 | AAA | Lc 105.9 | Preferred for body text |
| #000618 text on black | 1.03:1 | Fails | Lc 0.0 | 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 950.
-
Step 50
50
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E3EAF4
oklch(93.5% 0.015 257.2)
-
Step 200
200
#CDDAED
oklch(88.4% 0.03 257.8)
-
Step 300
300
#ABC2E4
oklch(80.8% 0.054 258)
-
Step 400
400
#7EA3D6
oklch(70.8% 0.086 256.5)
-
Step 500
500
#5D8BCB
oklch(63.1% 0.109 256.8)
-
Step 600
600
#4374B8
oklch(55.7% 0.119 256.9)
-
Step 700
700
#35619E
oklch(49.1% 0.11 257)
-
Step 800
800
#2C4F80
oklch(42.6% 0.091 257.1)
-
Step 900
900
#284267
oklch(37.7% 0.071 257.3)
-
Step 950
950 (this color)
#000618
oklch(12.7% 0.045 257.1)
#000618 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) | #000819 | 0.009 |
| Deuteranopia (no green cones) | #000518 | 0.005 |
| Tritanopia (no blue cones) | #000A0D | 0.034 |
| Achromatopsia (no color) | #060606 | 0.045 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #000618
#000618
oklch(12.7% 0.045 257.1)
- #0C0500
#0C0500
oklch(12.4% 0.026 74.3)
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 #000618, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight #03012D ΔE 0.048
- Dark Navy Blue #00022E ΔE 0.048
- Almost Black #070D0D ΔE 0.049
- Rich Navy #001219 ΔE 0.050
- Very Dark Blue #000133 ΔE 0.058
- Dark Navy #000435 ΔE 0.061
- Rich Black #0D1B2A ΔE 0.092
- Very Dark Brown #1D0200 ΔE 0.096
Use #000618 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.