#123642
Closest named color: Midnight Green (#073B4C). oklch(31.3% 0.046 223.3), rgb(18, 54, 66).
Aa
White text reads best on this color (12.86:1).
About this color
#123642 is a dark, muted teal or cyan. In OKLCH its lightness is 31%, its chroma 0.046 and its hue 223°. Its hue sits on the cool side of the wheel. The nearest named color is Midnight Green (#073B4C), ΔE 0.021 away. White text reads best on it, at 12.86:1.
| Hue family | Teals and cyans |
| Lightness | dark (31%) |
| Chroma | muted (0.046) |
| Temperature | cool |
| Nearest name | Midnight Green (#073B4C) |
| Black text | 1.63:1 |
| White text | 12.86:1 |
Values
| HEX | #123642 |
| RGB | rgb(18, 54, 66) |
| HSL | hsl(195, 57%, 16%) |
| OKLCH | oklch(31.3% 0.046 223.3) |
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 #123642 | 12.86:1 | AAA | Lc -102.2 | Preferred for body text |
| Black text on #123642 | 1.63:1 | Fails | Lc 0.0 | Not readable |
| #123642 text on white | 12.86:1 | AAA | Lc 98.9 | Preferred for body text |
| #123642 text on black | 1.63:1 | 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
#F1F7F9
oklch(97.2% 0.007 219.6)
-
Step 100
100
#DFECF2
oklch(93.5% 0.016 227)
-
Step 200
200
#C5DEE8
oklch(88.5% 0.03 223.8)
-
Step 300
300
#9BC9DB
oklch(80.9% 0.055 223.9)
-
Step 400
400
#5EADC8
oklch(70.8% 0.087 222.5)
-
Step 500
500
#1E97BA
oklch(63% 0.111 223.3)
-
Step 600
600
#0080A0
oklch(55.7% 0.104 223.4)
-
Step 700
700
#006B87
oklch(49% 0.092 224)
-
Step 800
800
#00586F
oklch(42.7% 0.08 223.4)
-
Step 900
900
#00495D
oklch(37.7% 0.071 223.8)
-
Step 950
950 (this color)
#123642
oklch(31.3% 0.046 223.3)
#123642 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) | #2F3543 | 0.036 |
| Deuteranopia (no green cones) | #283042 | 0.031 |
| Tritanopia (no blue cones) | #003A3A | 0.026 |
| Achromatopsia (no color) | #323232 | 0.046 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #123642
#123642
oklch(31.3% 0.046 223.3)
- #45291E
#45291E
oklch(31.3% 0.046 42.1)
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 #123642, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Green #073B4C ΔE 0.021
- Dark Blue Grey #1F3B4D ΔE 0.029
- Gunmetal #293241 ΔE 0.029
- Space Cadet #2B2D42 ΔE 0.041
- Prussian Blue #1D3557 ΔE 0.042
- Onyx #343A40 ΔE 0.047
- Oxford Blue #1B263B ΔE 0.053
- Dark #1B2431 ΔE 0.061
Use #123642 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.