#123045
Closest named color: Gunmetal (#293241). oklch(29.7% 0.052 242), rgb(18, 48, 69).
Aa
White text reads best on this color (13.68:1).
About this color
#123045 is a dark, muted blue. In OKLCH its lightness is 30%, its chroma 0.052 and its hue 242°. Its hue sits on the cool side of the wheel. The nearest named color is Gunmetal (#293241), ΔE 0.032 away. White text reads best on it, at 13.68:1.
| Hue family | Blues |
| Lightness | dark (30%) |
| Chroma | muted (0.052) |
| Temperature | cool |
| Nearest name | Gunmetal (#293241) |
| Black text | 1.53:1 |
| White text | 13.68:1 |
Values
| HEX | #123045 |
| RGB | rgb(18, 48, 69) |
| HSL | hsl(205, 59%, 17%) |
| OKLCH | oklch(29.7% 0.052 242) |
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 #123045 | 13.68:1 | AAA | Lc -103.2 | Preferred for body text |
| Black text on #123045 | 1.53:1 | Fails | Lc 0.0 | Not readable |
| #123045 text on white | 13.68:1 | AAA | Lc 100.1 | Preferred for body text |
| #123045 text on black | 1.53:1 | 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
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#E0ECF5
oklch(93.7% 0.018 240)
-
Step 200
200
#C6DDEE
oklch(88.6% 0.034 239.9)
-
Step 300
300
#9EC6E6
oklch(80.9% 0.062 242.7)
-
Step 400
400
#66A8D9
oklch(70.7% 0.099 242.1)
-
Step 500
500
#3491CF
oklch(63.1% 0.127 242.3)
-
Step 600
600
#007AB9
oklch(55.5% 0.132 242.1)
-
Step 700
700
#00679C
oklch(49.2% 0.116 241.5)
-
Step 800
800
#005481
oklch(42.7% 0.101 241.9)
-
Step 900
900
#0C4669
oklch(37.8% 0.082 241.6)
-
Step 950
950 (this color)
#123045
oklch(29.7% 0.052 242)
#123045 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) | #273046 | 0.027 |
| Deuteranopia (no green cones) | #202B45 | 0.022 |
| Tritanopia (no blue cones) | #003537 | 0.038 |
| Achromatopsia (no color) | #2D2D2D | 0.052 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #123045
#123045
oklch(29.7% 0.052 242)
- #40270F
#40270F
oklch(29.9% 0.052 62.2)
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 #123045, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Gunmetal #293241 ΔE 0.032
- Space Cadet #2B2D42 ΔE 0.033
- Oxford Blue #1B263B ΔE 0.034
- Midnight Green #073B4C ΔE 0.036
- Prussian Blue #1D3557 ΔE 0.038
- Dark Blue Grey #1F3B4D ΔE 0.042
- Dark #1B2431 ΔE 0.048
- Marine #042E60 ΔE 0.051
Use #123045 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.