#123645
Closest named color: Midnight Green (#073B4C). oklch(31.4% 0.049 228.8), rgb(18, 54, 69).
Aa
White text reads best on this color (12.81:1).
About this color
#123645 is a dark, muted teal or cyan. In OKLCH its lightness is 31%, its chroma 0.049 and its hue 229°. Its hue sits on the cool side of the wheel. The nearest named color is Midnight Green (#073B4C), ΔE 0.018 away. White text reads best on it, at 12.81:1.
| Hue family | Teals and cyans |
| Lightness | dark (31%) |
| Chroma | muted (0.049) |
| Temperature | cool |
| Nearest name | Midnight Green (#073B4C) |
| Black text | 1.63:1 |
| White text | 12.81:1 |
Values
| HEX | #123645 |
| RGB | rgb(18, 54, 69) |
| HSL | hsl(198, 59%, 17%) |
| OKLCH | oklch(31.4% 0.049 228.8) |
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 #123645 | 12.81:1 | AAA | Lc -102.1 | Preferred for body text |
| Black text on #123645 | 1.63:1 | Fails | Lc 0.0 | Not readable |
| #123645 text on white | 12.81:1 | AAA | Lc 98.8 | Preferred for body text |
| #123645 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
#F0F7FA
oklch(97.2% 0.008 225.1)
-
Step 100
100
#DFECF3
oklch(93.5% 0.017 230.9)
-
Step 200
200
#C4DEEA
oklch(88.5% 0.032 227.3)
-
Step 300
300
#9AC8DF
oklch(80.8% 0.058 230)
-
Step 400
400
#5DACCE
oklch(70.7% 0.092 228.2)
-
Step 500
500
#1C96C2
oklch(63.1% 0.118 229.1)
-
Step 600
600
#007EA6
oklch(55.5% 0.11 229.3)
-
Step 700
700
#006A8C
oklch(49% 0.097 229.1)
-
Step 800
800
#005773
oklch(42.7% 0.084 228.5)
-
Step 900
900
#004861
oklch(37.6% 0.075 229.8)
-
Step 950
950 (this color)
#123645
oklch(31.4% 0.049 228.8)
#123645 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) | #2E3546 | 0.035 |
| Deuteranopia (no green cones) | #273045 | 0.030 |
| Tritanopia (no blue cones) | #003A3B | 0.029 |
| Achromatopsia (no color) | #323232 | 0.049 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #123645
#123645
oklch(31.4% 0.049 228.8)
- #452A1B
#452A1B
oklch(31.5% 0.048 49.4)
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 #123645, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Green #073B4C ΔE 0.018
- Dark Blue Grey #1F3B4D ΔE 0.026
- Gunmetal #293241 ΔE 0.028
- Prussian Blue #1D3557 ΔE 0.037
- Space Cadet #2B2D42 ΔE 0.040
- Onyx #343A40 ΔE 0.048
- Oxford Blue #1B263B ΔE 0.053
- Marine #042E60 ΔE 0.061
Use #123645 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.